Litvinchev, Igor; Rangel, Socorro; Saucedo, Jania A Lagrangian bound for many-to-many assignment problems. (English) Zbl 1188.90143 J. Comb. Optim. 19, No. 3, 241-257 (2010). MSC: 90B80 PDFBibTeX XMLCite \textit{I. Litvinchev} et al., J. Comb. Optim. 19, No. 3, 241--257 (2010; Zbl 1188.90143) Full Text: DOI
Litvinchev, I.; Rangel, S.; Mata, M.; Saucedo, J. Studying properties of Lagrangian bounds for many-to-many assignment problems. (English. Russian original) Zbl 1308.49023 J. Comput. Syst. Sci. Int. 48, No. 3, 363-369 (2009); translation from Izv. Ross. Akad. Nauk, Teor. Sist. Upr. 2009, No. 3, 34-40 (2009). MSC: 49N05 49N90 90C46 PDFBibTeX XMLCite \textit{I. Litvinchev} et al., J. Comput. Syst. Sci. Int. 48, No. 3, 363--369 (2009; Zbl 1308.49023); translation from Izv. Ross. Akad. Nauk, Teor. Sist. Upr. 2009, No. 3, 34--40 (2009) Full Text: DOI
Litvinchev, I. S. Refinement of Lagrangian bounds in optimization problems. (Russian. English summary) Zbl 07811674 Zh. Vychisl. Mat. Mat. Fiz. 47, No. 7, 1151-1157 (2007); translation in Comput. Math. Math. Phys. 47, No. 7, 1101-1107 (2007). MSC: 90C05 PDFBibTeX XMLCite \textit{I. S. Litvinchev}, Zh. Vychisl. Mat. Mat. Fiz. 47, No. 7, 1151--1157 (2007; Zbl 07811674); translation in Comput. Math. Math. Phys. 47, No. 7, 1101--1107 (2007) Full Text: DOI MNR