@article{03680245, title = {Parameters and solutions of linear and nonlinear oscillators.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2}, year = {1979}, pages = {493-502}, doi = {10.1155/S0161171279000399}, zbl = {0436.34024}, language = {en}, url = {http://dml.mathdoc.fr/item/03680245} }
Ling, Rina. Parameters and solutions of linear and nonlinear oscillators.. International Journal of Mathematics and Mathematical Sciences, Tome 2 (1979) pp. 493-502. doi : 10.1155/S0161171279000399. http://gdmltest.u-ga.fr/item/03680245/