@article{05237398, title = {On simulations of the classical harmonic oscillator equation by difference equations.}, journal = {Advances in Difference Equations [electronic only]}, volume = {2006}, year = {2006}, doi = {10.1155/ADE/2006/40171}, zbl = {1139.65056}, language = {en}, url = {http://dml.mathdoc.fr/item/05237398} }
Cieśliński, Jan L.; Ratkiewicz, Bogusław. On simulations of the classical harmonic oscillator equation by difference equations.. Advances in Difference Equations [electronic only], Tome 2006 (2006) . doi : 10.1155/ADE/2006/40171. http://gdmltest.u-ga.fr/item/05237398/