@article{107032, author = {Miroslav Bartu\v sek}, title = {On zeros of solutions of the differential equation $y''+f(t,y)g(y')=0$}, journal = {Archivum Mathematicum}, volume = {015}, year = {1979}, pages = {129-132}, zbl = {0431.34025}, mrnumber = {562336}, language = {en}, url = {http://dml.mathdoc.fr/item/107032} }
Bartušek, Miroslav. On zeros of solutions of the differential equation $y''+f(t,y)g(y')=0$. Archivum Mathematicum, Tome 015 (1979) pp. 129-132. http://gdmltest.u-ga.fr/item/107032/
O нyляx кoлeблющuxcя peшeнuй ypaвнeнuя $(p(t) x')' + f(t, x, x') = 0$, Дифф. ypaв. XII, Но. 4, 621-625.
On Zeros of Solutions of the Differential Equation (p(t)y')' + f(t,y,y') = 0, Arch. Math. XI, No 4, 187-192. | MR 0409975 | Zbl 0342.34018
Monotonicity Theorems Concerning Differential Equations y" + f(t,y,y') = 0, Arch. Math. XII, No 4, 169-178. | MR 0430410 | Zbl 0354.34031
Oscillation and Monotonity Theorems Concerning Non-linear Differential Equations of the Second Order, Acta Math. Acad. Sci. Hung., IX, No 1-2, 1958, 83-104. (1958) | MR 0095321