@article{04000422, title = {On the boundedness and oscillation of solutions to }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {10}, year = {1987}, pages = {47-50}, doi = {10.1155/S016117128700005X}, zbl = {0617.34026}, language = {en}, url = {http://dml.mathdoc.fr/item/04000422} }
Kroopnick, Allan J. On the boundedness and oscillation of solutions to . International Journal of Mathematics and Mathematical Sciences, Tome 10 (1987) pp. 47-50. doi : 10.1155/S016117128700005X. http://gdmltest.u-ga.fr/item/04000422/