@article{oai:ynu.repo.nii.ac.jp:00006509, author = {Singh, Y. P.}, issue = {2}, journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学}, month = {}, note = {application/pdf}, pages = {77--86}, title = {SOME OSCILLATION THEOREMS FOR THIRD ORDER NON-LINEAR DIFFERENTIAL EQUATIONS}, volume = {18}, year = {1970} }