Girsovic, J.; Levin, M. Extremal problems for cubature formulas. (English) Zbl 0396.41016 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 27, 151-158 (1978). MSC: 41A55 65D32 PDF BibTeX XML Cite \textit{J. Girsovic} and \textit{M. Levin}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 27, 151--158 (1978; Zbl 0396.41016)
Levin, M. I.; Girsovic, Ju. M. Extremal problems for cubature formulas. (English. Russian original) Zbl 0404.41016 Sov. Math., Dokl. 18(1977), 1355-1358 (1978); translation from Dokl. Akad. Nauk SSSR 236, 1303-1306 (1977). MSC: 41A55 65D32 PDF BibTeX XML Cite \textit{M. I. Levin} and \textit{Ju. M. Girsovic}, Sov. Math., Dokl. 18, 1355--1358 (1977; Zbl 0404.41016); translation from Dokl. Akad. Nauk SSSR 236, 1303--1306 (1977)
Levin, M.; Girsovic, Ju. Optimal cubature formulae for sets of periodical functions. (Russian) Zbl 0378.65015 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 26, 115-122 (1977). MSC: 65D30 41A55 PDF BibTeX XML Cite \textit{M. Levin} and \textit{Ju. Girsovic}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 26, 115--122 (1977; Zbl 0378.65015)
Levin, M. I.; Girsovic, Ju. M.; Arro, V. K. Best quadrature formulas on sets of functions. (English. Russian original) Zbl 0341.41024 Sov. Math., Dokl. 17, 46-50 (1976); translation from Dokl. Akad. Nauk SSSR 226, 51-54 (1976). MSC: 41A55 41A50 PDF BibTeX XML Cite \textit{M. I. Levin} et al., Sov. Math., Dokl. 17, 46--50 (1976; Zbl 0341.41024); translation from Dokl. Akad. Nauk SSSR 226, 51--54 (1976)
Levin, M.; Arro, V.; Girsovic, Ju. Optimal quadrature formulae for some sets of functions. (Russian) Zbl 0329.65018 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 25, 112-117 (1976). MSC: 65D30 41A55 PDF BibTeX XML Cite \textit{M. Levin} et al., Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 25, 112--117 (1976; Zbl 0329.65018)
Levin, M.; Girsovic, Ju. Optimal quadrature formulae for sets of functions satisfying boundary conditions. (English) Zbl 0313.41011 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 24, 264-269 (1975). MSC: 41A55 41A50 65D30 PDF BibTeX XML Cite \textit{M. Levin} and \textit{Ju. Girsovic}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 24, 264--269 (1975; Zbl 0313.41011)