Angelov, R. A.; Markov, S. On the existence of solutions of interval differential equations and inclusions. (English) Zbl 0533.65054 Mathematics and education in mathematics, Proc. 10th Spring Conf. Union Bulg. Math., Sunny Beach 1981, 96-101 (1981). MSC: 65L05 65G30 PDFBibTeX XML
Cade, R. Neumann’s method for Robin’s integral equation in \(E^ 2\) for a curve with a vertex. (English) Zbl 0462.45004 J. Integral Equations 3, 1-19 (1981). MSC: 45E05 45K05 30E20 31A10 45L05 PDFBibTeX XMLCite \textit{R. Cade}, J. Integral Equations 3, 1--19 (1981; Zbl 0462.45004)