@article{1178242728,
author = {Yoshizawa, Taro},
title = {Oscillatory property of solutions of second order differential equations},
journal = {Tohoku Math. J. (2)},
volume = {22},
number = {4},
year = {1970},
pages = { 619-634},
language = {en},
url = {http://dml.mathdoc.fr/item/1178242728}
}
Yoshizawa, Taro. Oscillatory property of solutions of second order differential equations. Tohoku Math. J. (2), Tome 22 (1970) no. 4, pp. 619-634. http://gdmltest.u-ga.fr/item/1178242728/