@article{104844, author = {Milo\v s R\'ab}, title = {Bounds for solutions of the equation $[p(t)x']'+q(t)x=h(t,x,x')$}, journal = {Archivum Mathematicum}, volume = {011}, year = {1975}, pages = {79-84}, zbl = {0365.34042}, mrnumber = {0412520}, language = {en}, url = {http://dml.mathdoc.fr/item/104844} }
Ráb, Miloš. Bounds for solutions of the equation $[p(t)x']'+q(t)x=h(t,x,x')$. Archivum Mathematicum, Tome 011 (1975) pp. 79-84. http://gdmltest.u-ga.fr/item/104844/
A generalization of a lemma of Bellman and its application to uniqueness problems of differential equations, Acta Math. Acad. Sci. Hungar 7 (1956), 71-94. (1956) | MR 0079154 | Zbl 0070.08201