@article{03708820,
title = {Oscillation in second order functional equations with deviating arguments.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {4},
year = {1981},
pages = {137-146},
doi = {10.1155/S0161171281000094},
zbl = {0453.34058},
language = {en},
url = {http://dml.mathdoc.fr/item/03708820}
}
Singh, Bhagat. Oscillation in second order functional equations with deviating arguments.. International Journal of Mathematics and Mathematical Sciences, Tome 4 (1981) pp. 137-146. doi : 10.1155/S0161171281000094. http://gdmltest.u-ga.fr/item/03708820/