Yakovlev, G. N. Über ein Variationsproblem. (Russian) Zbl 0183.39302 Differ. Uravn. 5, 1303-1312 (1969). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:variational calculus PDF BibTeX XML Cite \textit{G. N. Yakovlev}, Differ. Uravn. 5, 1303--1312 (1969; Zbl 0183.39302) OpenURL