Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1980__16_1_a3, author = {Mehri, B.}, title = {Periodic solution of certain second order differential equation}, journal = {Archivum mathematicum}, pages = {39--44}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1980}, mrnumber = {594665}, zbl = {0452.34036}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1980__16_1_a3/} }
Mehri, B. Periodic solution of certain second order differential equation. Archivum mathematicum, Tome 16 (1980) no. 1, pp. 39-44. http://geodesic.mathdoc.fr/item/ARM_1980__16_1_a3/