Falletta, Silvia; Monegato, Giovanni; Scuderi, Letizia An overview on a time discrete convolution – space collocation BEM for 2D exterior wave propagation problems. (English) Zbl 1501.65146 Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 68, No. 2, 311-336 (2022). MSC: 65N38 65N35 65M60 65N30 65D32 65M12 74B10 65R20 PDFBibTeX XMLCite \textit{S. Falletta} et al., Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 68, No. 2, 311--336 (2022; Zbl 1501.65146) Full Text: DOI
Falletta, S.; Monegato, G.; Scuderi, L. Two FEM-BEM methods for the numerical solution of 2D transient elastodynamics problems in unbounded domains. (English) Zbl 1524.65486 Comput. Math. Appl. 114, 132-150 (2022). MSC: 65M38 74S15 35L05 65R20 65T60 65M60 65M06 65N30 65N38 74S05 74B10 74J05 PDFBibTeX XMLCite \textit{S. Falletta} et al., Comput. Math. Appl. 114, 132--150 (2022; Zbl 1524.65486) Full Text: DOI
Falletta, Silvia; Monegato, Giovanni; Scuderi, Letizia Two boundary integral equation methods for linear elastodynamics problems on unbounded domains. (English) Zbl 1443.65182 Comput. Math. Appl. 78, No. 12, 3841-3861 (2019). MSC: 65M38 65R20 PDFBibTeX XMLCite \textit{S. Falletta} et al., Comput. Math. Appl. 78, No. 12, 3841--3861 (2019; Zbl 1443.65182) Full Text: DOI
Junghanns, Peter; Monegato, Giovanni; Demasi, Luciano Properties and numerical solution of an integral equation to minimize airplane drag. (English) Zbl 1405.65170 Dick, Josef (ed.) et al., Contemporary computational mathematics – a celebration of the 80th birthday of Ian Sloan. In 2 volumes. Cham: Springer (ISBN 978-3-319-72455-3/hbk; 978-3-319-72456-0/ebook). 675-701 (2018). MSC: 65R20 45E05 49K30 65D32 76B10 PDFBibTeX XMLCite \textit{P. Junghanns} et al., in: Contemporary computational mathematics -- a celebration of the 80th birthday of Ian Sloan. In 2 volumes. Cham: Springer. 675--701 (2018; Zbl 1405.65170) Full Text: DOI Link
Monegato, G.; Scuderi, L. A space-time BIE method for 2D wave equation problems with mixed boundary conditions. (English) Zbl 1448.65142 Appl. Math. Comput. 259, 1046-1070 (2015). MSC: 65M38 65M70 65D32 35L20 35L05 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{L. Scuderi}, Appl. Math. Comput. 259, 1046--1070 (2015; Zbl 1448.65142) Full Text: DOI
Falletta, S.; Monegato, G.; Scuderi, L. A space-time BIE method for wave equation problems: The (two-dimensional) Neumann case. (English) Zbl 1303.65081 IMA J. Numer. Anal. 34, No. 1, 390-434 (2014). Reviewer: Vasilis Dimitriou (Chania) MSC: 65M38 35L05 65M12 PDFBibTeX XMLCite \textit{S. Falletta} et al., IMA J. Numer. Anal. 34, No. 1, 390--434 (2014; Zbl 1303.65081) Full Text: DOI
Monegato, G.; Scuderi, L. Potential evaluation in space-time BIE formulations of 2D wave equation problems. (English) Zbl 1416.65318 J. Comput. Appl. Math. 243, 60-79 (2013). Reviewer: Weizhong Dai (Ruston) MSC: 65M38 35L05 65D32 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{L. Scuderi}, J. Comput. Appl. Math. 243, 60--79 (2013; Zbl 1416.65318) Full Text: DOI
Mastroianni, G.; Monegato, G. Numerical integration of functions with a very small significant support. (English) Zbl 1246.65046 J. Comput. Appl. Math. 236, No. 16, 4082-4089 (2012). MSC: 65D32 65R20 41A55 45B05 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, J. Comput. Appl. Math. 236, No. 16, 4082--4089 (2012; Zbl 1246.65046) Full Text: DOI
Monegato, Giovanni; Scuderi, Letizia; Stanić, Marija P. Lubich convolution quadratures and their application to problems described by space-time BIEs. (English) Zbl 1209.65095 Numer. Algorithms 56, No. 3, 405-436 (2011). MSC: 65M38 PDFBibTeX XMLCite \textit{G. Monegato} et al., Numer. Algorithms 56, No. 3, 405--436 (2011; Zbl 1209.65095) Full Text: DOI Link
Monegato, G.; Scuderi, L. Quadrature rules for unbounded intervals and their application to integral equations. (English) Zbl 1215.65047 Gautschi, Walter (ed.) et al., Approximation and computation. In honor of Gradimir V. Milovanović. Most papers based on the presentations at the international conference, Niš, Serbia, August 25–29, 2008. Dordrecht: Springer (ISBN 978-1-4419-6593-6/hbk; 978-1-4419-6594-3/ebook). Springer Optimization and Its Applications 42, 185-208 (2011). MSC: 65D32 41A55 45B05 65R20 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{L. Scuderi}, Springer Optim. Appl. 42, 185--208 (2011; Zbl 1215.65047) Full Text: DOI
Junghanns, Peter; Monegato, Giovanni On the numerical solution of integral equations with logarithmic kernels. (English) Zbl 1470.65214 Proceedings of the sixth international conference on functional analysis and approximation theory, Acquafredda di Maratea, Potenza, Italy, September 24–30, 2009. Palermo: Circolo Matematico di Palermo. Suppl. Rend. Circ. Mat. Palermo (2) 82, 55-74 (2010). MSC: 65R20 45B05 45E99 PDFBibTeX XMLCite \textit{P. Junghanns} and \textit{G. Monegato}, Suppl. Rend. Circ. Mat. Palermo (2) 82, 55--74 (2010; Zbl 1470.65214)
Mastroianni, G.; Monegato, G. Erratum to “Some new applications of truncated Gauss-Laguerre quadrature formulas”. (English) Zbl 1186.65032 Numer. Algorithms 52, No. 3, 507 (2009). Reviewer: Jesus Illán González (Vigo) MSC: 65D32 65R20 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Numer. Algorithms 52, No. 3, 507 (2009; Zbl 1186.65032) Full Text: DOI
Monegato, G. Definitions, properties and applications of finite-part integrals. (English) Zbl 1166.65061 J. Comput. Appl. Math. 229, No. 2, 425-439 (2009). MSC: 65N38 65D32 65R20 35K05 74B05 78A45 74S15 78M15 PDFBibTeX XMLCite \textit{G. Monegato}, J. Comput. Appl. Math. 229, No. 2, 425--439 (2009; Zbl 1166.65061) Full Text: DOI
Mastroianni, G.; Monegato, G. Some new applications of truncated Gauss-Laguerre quadrature formulas. (English) Zbl 1181.65044 Numer. Algorithms 49, No. 1-4, 283-297 (2008). Reviewer: Jesus Illán González (Vigo) MSC: 65D32 65R20 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Numer. Algorithms 49, No. 1--4, 283--297 (2008; Zbl 1181.65044) Full Text: DOI
Monegato, Giovanni; Strozzi, Antonio The numerical evaluation of two integral transforms. (English) Zbl 1134.65088 J. Comput. Appl. Math. 211, No. 2, 173-180 (2008). MSC: 65R10 44A15 65D32 41A55 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{A. Strozzi}, J. Comput. Appl. Math. 211, No. 2, 173--180 (2008; Zbl 1134.65088) Full Text: DOI
Monegato, G. Some new problems in numerical integration. (English) Zbl 1134.65019 J. Comput. Appl. Math. 210, No. 1-2, 244-253 (2007). MSC: 65D32 41A55 65R20 45E10 35Q60 65N38 78A25 78M15 PDFBibTeX XMLCite \textit{G. Monegato}, J. Comput. Appl. Math. 210, No. 1--2, 244--253 (2007; Zbl 1134.65019) Full Text: DOI
Monegato, Giovanni; Scuderi, Letizia Numerical integration of functions with endpoint singularities and/or complex poles in 3D Galerkin boundary element methods. (English) Zbl 1100.65019 Publ. Res. Inst. Math. Sci. 41, No. 4, 869-895 (2005). MSC: 65D32 65N38 41A55 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{L. Scuderi}, Publ. Res. Inst. Math. Sci. 41, No. 4, 869--895 (2005; Zbl 1100.65019) Full Text: DOI
Lyness, J. N.; Monegato, G. Asymptotic expansions for two-dimensional hypersingular integrals. (English) Zbl 1083.65030 Numer. Math. 100, No. 2, 293-329 (2005). Reviewer: Dan Bārbosu (Baia Mare) MSC: 65D32 65B15 41A55 PDFBibTeX XMLCite \textit{J. N. Lyness} and \textit{G. Monegato}, Numer. Math. 100, No. 2, 293--329 (2005; Zbl 1083.65030) Full Text: DOI
Mastroianni, G.; Monegato, G. Truncated quadrature rules over \((0,\infty)\) and Nyström-type methods. (English) Zbl 1056.65022 SIAM J. Numer. Anal. 41, No. 5, 1870-1892 (2003). Reviewer: Iulian Coroian (Baia Mare) MSC: 65D32 41A55 45E10 65R20 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, SIAM J. Numer. Anal. 41, No. 5, 1870--1892 (2003; Zbl 1056.65022) Full Text: DOI
Mastroianni, G.; Monegato, G. Numerical solution of Mellin type equations via Wiener-Hopf equations. (English) Zbl 1024.65132 Böttcher, Albrecht (ed.) et al., Toeplitz matrices and singular integral equations. The Bernd Silbermann anniversary volume. Basel: Birkhäuser. Oper. Theory, Adv. Appl. 135, 249-260 (2002). Reviewer: Kai Diethelm (Braunschweig) MSC: 65R20 45E10 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, in: Toeplitz matrices and singular integral equations. The Bernd Silbermann anniversary volume. Basel: Birkhäuser. 249--260 (2002; Zbl 1024.65132)
Mastroianni, G.; Monegato, G. Truncated Gauss-Laguerre quadrature rules. (English) Zbl 1019.65022 Trigiante, Donato (ed.), Recent trends in numerical analysis. Dedicated to the 65th birthday of Professor I. Galligani. Huntington, NY: Nova Science Publishers. Adv. Theory Comput. Comput. Math. 3, 213-221 (2001). Reviewer: Kai Diethelm (Braunschweig) MSC: 65D32 41A55 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Adv. Theory Comput. Comput. Math. 3, 213--221 (2001; Zbl 1019.65022)
Monegato, Giovanni An overview of the computational aspects of Kronrod quadrature rules. (English) Zbl 0974.65024 Numer. Algorithms 26, No. 2, 173-196 (2001). Reviewer: D.Acu (Sibiu) MSC: 65D32 41A55 PDFBibTeX XMLCite \textit{G. Monegato}, Numer. Algorithms 26, No. 2, 173--196 (2001; Zbl 0974.65024) Full Text: DOI
Mastroianni, G.; Monegato, G. Error estimates in the numerical evaluation of some BEM singular integrals. (English) Zbl 0967.41018 Math. Comput. 70, No. 233, 251-267 (2001). Reviewer: D.S.Lubinsky (Wits) MSC: 41A55 65D32 65N38 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Math. Comput. 70, No. 233, 251--267 (2001; Zbl 0967.41018) Full Text: DOI
Diligenti, M.; Monegato, G. A simple approach to compute integrals in collocation and Galerkin BEMs for 2D problems. (English) Zbl 0983.65024 Riv. Mat. Univ. Parma (6) 2*, 191-214 (1999). Reviewer: Sven Ehrich (Neuherberg) MSC: 65D32 35J25 65N35 65N38 PDFBibTeX XMLCite \textit{M. Diligenti} and \textit{G. Monegato}, Riv. Mat. Univ. Parma (6) 2*, 191--214 (1999; Zbl 0983.65024)
Monegato, G.; Scuderi, L. Numerical integration of functions with boundary singularities. (English) Zbl 0940.65027 J. Comput. Appl. Math. 112, No. 1-2, 201-214 (1999). Reviewer: Ll.G.Chambers (Bangor) MSC: 65D32 65N38 65R20 41A55 41A63 45E10 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{L. Scuderi}, J. Comput. Appl. Math. 112, No. 1--2, 201--214 (1999; Zbl 0940.65027) Full Text: DOI
Monegato, G.; Lyness, J. N. The Euler-Maclaurin expansion and finite-part integrals. (English) Zbl 0932.41027 Numer. Math. 81, No. 2, 273-291 (1998). Reviewer: S.V.Rogozin (Minsk) MSC: 41A55 41A80 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{J. N. Lyness}, Numer. Math. 81, No. 2, 273--291 (1998; Zbl 0932.41027) Full Text: DOI
Mastroianni, G.; Monegato, G. Nyström interpolants based on zeros of Laguerre polynomials for some Wiener-Hopf equations. (English) Zbl 0884.65133 IMA J. Numer. Anal. 17, No. 4, 621-642 (1997). Reviewer: E.Minchev (Sofia) MSC: 65R20 45E10 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, IMA J. Numer. Anal. 17, No. 4, 621--642 (1997; Zbl 0884.65133) Full Text: DOI
Aimi, A.; Diligenti, M.; Monegato, G. New numerical integration schemes for applications of Galerkin BEM to 2-D problems. (English) Zbl 0886.73074 Int. J. Numer. Methods Eng. 40, No. 11, 1977-1999 (1997). MSC: 74S15 65N38 PDFBibTeX XMLCite \textit{A. Aimi} et al., Int. J. Numer. Methods Eng. 40, No. 11, 1977--1999 (1997; Zbl 0886.73074) Full Text: DOI
Diligenti, M.; Monegato, G. Integral evaluation in the BEM solution of (hyper)singular integral equations. 2D problems on polygonal domains. (English) Zbl 0879.65074 J. Comput. Appl. Math. 81, No. 1, 29-57 (1997). Reviewer: J.C.F.Telles (Rio de Janeiro) MSC: 65N38 65D32 65N35 35J05 PDFBibTeX XMLCite \textit{M. Diligenti} and \textit{G. Monegato}, J. Comput. Appl. Math. 81, No. 1, 29--57 (1997; Zbl 0879.65074) Full Text: DOI
Monegato, Giovanni A stable Nyström interpolant for some Mellin convolution equations. (English) Zbl 0853.65141 Numer. Algorithms 11, No. 1-4, 271-283 (1996). Reviewer: D.A.Quinney (Keele) MSC: 65R20 45E10 PDFBibTeX XMLCite \textit{G. Monegato}, Numer. Algorithms 11, No. 1--4, 271--283 (1996; Zbl 0853.65141) Full Text: DOI
Mastroianni, G.; Monegato, G. Convergence of product integration rules over \((0,\infty )\) for functions with weak singularities at the origin. (English) Zbl 0820.65006 Math. Comput. 64, No. 209, 237-249 (1995). Reviewer: M.Gaşpar (Iaşi) MSC: 65D32 41A55 41A80 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Math. Comput. 64, No. 209, 237--249 (1995; Zbl 0820.65006) Full Text: DOI Link
Diligenti, Mauro; Monegato, Giovanni Finite-part integrals: Their occurence and computation. (English) Zbl 0813.65051 Altomare, F. (ed.) et al., Proceedings of the 2nd international conference in functional analysis and approximation theory, Acquafredda di Maratea (Potenza), September 14-19, 1992. Palermo: Circolo Matemático di Palermo, Suppl. Rend. Circ. Mat. Palermo, II. Ser. 33, 39-61 (1994). Reviewer: D.Braess (Bochum) MSC: 65D32 41A55 65R20 30E20 45E05 PDFBibTeX XMLCite \textit{M. Diligenti} and \textit{G. Monegato}, in: Proceedings of the 2nd international conference in functional analysis and approximation theory, Acquafredda di Maratea (Potenza), September 14- 19, 1992. Palermo: Circolo Matemático di Palermo. 39--61 (1994; Zbl 0813.65051)
Monegato, Giovanni Numerical evaluation of hypersingular integrals. (English) Zbl 0818.65016 J. Comput. Appl. Math. 50, No. 1-3, 9-31 (1994). Reviewer: W.E.Smith (Kensington) MSC: 65D32 41A55 41A63 41A80 PDFBibTeX XMLCite \textit{G. Monegato}, J. Comput. Appl. Math. 50, No. 1--3, 9--31 (1994; Zbl 0818.65016) Full Text: DOI
Monegato, Giovanni The numerical evaluation of a 2-D Cauchy principal value integral arising in boundary integral equation methods. (English) Zbl 0801.65019 Math. Comput. 62, No. 206, 765-777 (1994). Reviewer: J.Elschner (Berlin) MSC: 65D32 65N38 30E20 PDFBibTeX XMLCite \textit{G. Monegato}, Math. Comput. 62, No. 206, 765--777 (1994; Zbl 0801.65019) Full Text: DOI
Mastroianni, Giuseppe; Monegato, Giovanni Polynomial approximations of functions with endpoint singularities and product integration formulas. (English) Zbl 0803.65020 Math. Comput. 62, No. 206, 725-738 (1994). Reviewer: D.Acu (Sibiu) MSC: 65D32 41A25 65R20 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, Math. Comput. 62, No. 206, 725--738 (1994; Zbl 0803.65020) Full Text: DOI
Mastroianni, G.; Monegato, G. Nyström interpolants based on the zeros of Legendre polynomials for a non-compact integral operator equation. (English) Zbl 0804.65138 IMA J. Numer. Anal. 14, No. 1, 81-95 (1994). Reviewer: D.Kershaw (Lancaster) MSC: 65R20 45E10 74B10 74B05 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{G. Monegato}, IMA J. Numer. Anal. 14, No. 1, 81--95 (1994; Zbl 0804.65138) Full Text: DOI
Criscuolo, Giuliana; Mastroianni, Giuseppe; Monegato, Giovanni Convergence properties of a class of product formulas for weakly singular integral equations. (English) Zbl 0705.65017 Math. Comput. 55, No. 191, 213-230 (1990). Reviewer: D.Acu MSC: 65D32 65R20 41A55 30E20 45E10 PDFBibTeX XMLCite \textit{G. Criscuolo} et al., Math. Comput. 55, No. 191, 213--230 (1990; Zbl 0705.65017) Full Text: DOI
Monegato, G.; Lepora, P. On the numerical resolution of the generalized airfoil equation with Possio kernel. (English) Zbl 0695.65079 Numer. Math. 56, No. 8, 775-787 (1990). Reviewer: S.Spassov MSC: 65R20 45E10 76B10 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{P. Lepora}, Numer. Math. 56, No. 8, 775--787 (1990; Zbl 0695.65079) Full Text: DOI EuDML
Monegato, Giovanni; Orsi, Annamaria Palamara Product formulas for Fredholm integral equations with rational kernel functions. (English) Zbl 0654.65088 Numerical integration III, Proc. Conf. Oberwolfach/FRG 1987, ISNM 85, 140-156 (1988). Reviewer: P.P.B.Eggermont MSC: 65R20 65D32 65N35 41A55 35J05 45B05 PDFBibTeX XML
Monegato, G.; Colombo, V. Product integration for the linear transport equation in slab geometry. (English) Zbl 0618.65143 Numer. Math. 52, No. 2, 219-240 (1988); correction ibid. 53, No. 6, 739 (1988). MSC: 65R20 45K05 82C70 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{V. Colombo}, Numer. Math. 52, No. 2, 219--240 (1988; Zbl 0618.65143) Full Text: DOI EuDML
Monegato, Giovanni On the weights of certain quadratures for the numerical evaluation of Cauchy principal value integrals and their derivatives. (English) Zbl 0589.41025 Numer. Math. 50, 273-281 (1987). MSC: 41A55 PDFBibTeX XMLCite \textit{G. Monegato}, Numer. Math. 50, 273--281 (1987; Zbl 0589.41025) Full Text: DOI EuDML
Monegato, Giovanni Quadrature formulas for functions with poles near the interval of integration. (English) Zbl 0597.65012 Math. Comput. 47, 301-312 (1986). Reviewer: D.Braess MSC: 65D32 41A55 30E20 PDFBibTeX XMLCite \textit{G. Monegato}, Math. Comput. 47, 301--312 (1986; Zbl 0597.65012) Full Text: DOI
Monegato, G.; Pennacchietti, V. Quadrature rules for Prandtl’s integral equation. (English) Zbl 0576.65014 Computing 37, 31-42 (1986). MSC: 65D32 65R20 41A55 30E20 45E05 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{V. Pennacchietti}, Computing 37, 31--42 (1986; Zbl 0576.65014) Full Text: DOI
Monegato, Giovanni Stieltjes polynomials and related quadrature rules. (English) Zbl 0494.33010 SIAM Rev. 24, 137-158 (1982). MSC: 33C45 65D32 PDFBibTeX XMLCite \textit{G. Monegato}, SIAM Rev. 24, 137--158 (1982; Zbl 0494.33010) Full Text: DOI
Monegato, G. The numerical evaluation of one-dimensional Cauchy principal value integrals. (English) Zbl 0485.65017 Computing 29, 337-354 (1982). MSC: 65D32 41A55 30E20 PDFBibTeX XMLCite \textit{G. Monegato}, Computing 29, 337--354 (1982; Zbl 0485.65017) Full Text: DOI
Monegato, Giovanni On polynomials orthogonal with respect to particular variable-signed weight functions. (English) Zbl 0446.33013 Z. Angew. Math. Phys. 31, 549-555 (1980). MSC: 33C45 65D32 PDFBibTeX XMLCite \textit{G. Monegato}, Z. Angew. Math. Phys. 31, 549--555 (1980; Zbl 0446.33013) Full Text: DOI
Lyness, J. N.; Monegato, G. Quadrature error functional expansions for the simplex when the integrand function has singularities at vertices. (English) Zbl 0442.41023 Math. Comput. 34, 213-225 (1980). MSC: 41A55 65D32 PDFBibTeX XMLCite \textit{J. N. Lyness} and \textit{G. Monegato}, Math. Comput. 34, 213--225 (1980; Zbl 0442.41023) Full Text: DOI
Monegato, G.; Lyness, J. N. On the numerical evaluation of a particular singular two-dimensional integral. (English) Zbl 0443.65007 Math. Comput. 33, 993-1002 (1979). MSC: 65D32 41A55 41A63 30E20 PDFBibTeX XMLCite \textit{G. Monegato} and \textit{J. N. Lyness}, Math. Comput. 33, 993--1002 (1979; Zbl 0443.65007) Full Text: DOI
Monegato, Giovanni An overview of results and questions related to Kronrod schemes. (English) Zbl 0416.65017 Numerische Integration, Tag. Oberwolfach 1978, ISNM Vol. 45, 231-240 (1979). MSC: 65D32 41A55 PDFBibTeX XML
Kahaner, D. K.; Monegato, G. Nonexistence of extended Gauss-Laguerre and Gauss-Hermite quadrature rules with positive weights. (English) Zbl 0399.41027 Z. angew. Math. Phys. 29, 983-986 (1978). MSC: 41A55 65D32 PDFBibTeX XMLCite \textit{D. K. Kahaner} and \textit{G. Monegato}, Z. Angew. Math. Phys. 29, 983--986 (1978; Zbl 0399.41027) Full Text: DOI