Persons RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB     Hartman, Philip https://www.mathnet.ru/eng/person123961 List of publications on Google Scholar Publications in Math-Net.Ru Citations 1962 1. Ph. Hartman, “On boundary value problems for systems of ordinary, nonlinear, second order differential equations”, Matematika, 6:5 (1962),  69–86      ; Trans. Amer. Math. Soc., 96:3 (1960), 493–509