@article{104613, author = {Jarom\'\i r Vosmansk\'y}, title = {The monotonicity of extremants of integrals of the differential equation $y''+q(t)y=0$}, journal = {Archivum Mathematicum}, volume = {002}, year = {1966}, pages = {105-111}, zbl = {0219.34035}, mrnumber = {0216072}, language = {en}, url = {http://dml.mathdoc.fr/item/104613} }
Vosmanský, Jaromír. The monotonicity of extremants of integrals of the differential equation $y''+q(t)y=0$. Archivum Mathematicum, Tome 002 (1966) pp. 105-111. http://gdmltest.u-ga.fr/item/104613/
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