@article{1250128755,
author = {Hinton, Don B. and Lewis, Roger T.},
title = {Oscillation theory for generalized second-order differential equations},
journal = {Rocky Mountain J. Math.},
volume = {10},
number = {4},
year = {1980},
pages = { 751-766},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128755}
}
Hinton, Don B.; Lewis, Roger T. Oscillation theory for generalized second-order differential equations. Rocky Mountain J. Math., Tome 10 (1980) no. 4, pp. 751-766. http://gdmltest.u-ga.fr/item/1250128755/