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@article{MASLO_1992__42_3_a6, author = {D\v{z}urina, Jozef}, title = {The oscillation of a differential equation of second order with deviating argument}, journal = {Mathematica slovaca}, pages = {317--324}, publisher = {mathdoc}, volume = {42}, number = {3}, year = {1992}, mrnumber = {1182961}, zbl = {0756.34069}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1992__42_3_a6/} }
Džurina, Jozef. The oscillation of a differential equation of second order with deviating argument. Mathematica slovaca, Tome 42 (1992) no. 3, pp. 317-324. http://geodesic.mathdoc.fr/item/MASLO_1992__42_3_a6/