@article{GMJ_1997__4_2_47751, author = {Lomtatidze, A.}, title = {Oscillation and nonoscillation criteria for second-order linear differential equations.}, journal = {Georgian mathematical journal}, pages = {129--138}, year = {1997}, volume = {4}, number = {2}, zbl = {0877.34029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_1997__4_2_47751/} }