Erugin, N. P.; Nikol’skij, S. M.; Yakovlev, G. N. Lev Dmitrievich Kudryavtsev (zum 50. Geburtstag). (Russian) Zbl 0257.01013 Differ. Uravn. 9, 969-973 (1973). Page: −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 01A70 Biographies, obituaries, personalia, bibliographies PDF BibTeX XML Cite \textit{N. P. Erugin} et al., Differ. Uravn. 9, 969--973 (1973; Zbl 0257.01013) OpenURL