@article{1102868042,
author = {Liu, Tsai Sheng},
title = {Oscillation of even order differential equations with deviating arguments.},
journal = {Pacific J. Math.},
volume = {61},
number = {2},
year = {1975},
pages = { 493-502},
language = {en},
url = {http://dml.mathdoc.fr/item/1102868042}
}
Liu, Tsai Sheng. Oscillation of even order differential equations with deviating arguments.. Pacific J. Math., Tome 61 (1975) no. 2, pp. 493-502. http://gdmltest.u-ga.fr/item/1102868042/