Putilova, R. I. Qualitative Untersuchung eines Systems dreier Differentialgleichungen mit Hilfe von Integralflächen. (Russian) Zbl 0314.34041 Differ. Uravn. 10, 1533-1536 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations 34C30 Manifolds of solutions of ODE (MSC2000) PDF BibTeX XML Cite \textit{R. I. Putilova}, Differ. Uravn. 10, 1533--1536 (1974; Zbl 0314.34041) OpenURL