Levin, M. Bemerkung über die Abschätzung der Fehler von Integrationsformeln. (Russian) Zbl 0326.65018 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 23, 176-178 (1974). MSC: 65D30 41A55 PDFBibTeX XMLCite \textit{M. Levin}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 23, 176--178 (1974; Zbl 0326.65018)
Levin, M. On the best quadrature formulae with the weight function and the fixed nodes. (Russian) Zbl 0325.65006 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 23, 179-181 (1974). MSC: 65D30 41A55 PDFBibTeX XMLCite \textit{M. Levin}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 23, 179--181 (1974; Zbl 0325.65006)
Levin, M.; Arro, V. The best quadrature formulae with weight function x. (Russian) Zbl 0321.65015 Izv. Akad. Nauk Ehst. SSR, Fiz. Mat. 23, 362-369 (1974). MSC: 65D30 41A35 PDFBibTeX XMLCite \textit{M. Levin} and \textit{V. Arro}, Izv. Akad. Nauk Èst. SSR, Fiz., Mat. 23, 362--369 (1974; Zbl 0321.65015)
Levin, M. I. ’Unimprovable’ states in a model of an industrial network. (English. Russian original) Zbl 0304.90041 Autom. Remote Control 35, 1315-1326 (1974); translation from Avtom. Telemekh. 1974, No. 8, 119-132 (1974). MSC: 90B10 90B30 91B60 PDFBibTeX XMLCite \textit{M. I. Levin}, Autom. Remote Control 35, 1315--1326 (1974; Zbl 0304.90041); translation from Avtom. Telemekh. 1974, No. 8, 119--132 (1974)