Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{COMIM_1995__3_1_a1, author = {D{\l}otko, Tadeusz}, title = {Some records on second order differential equations}, journal = {Communications in Mathematics}, pages = {21--26}, publisher = {mathdoc}, volume = {03}, number = {1}, year = {1995}, mrnumber = {1474062}, zbl = {0854.34015}, language = {en}, url = {http://geodesic.mathdoc.fr/item/COMIM_1995__3_1_a1/} }
Dłotko, Tadeusz. Some records on second order differential equations. Communications in Mathematics, Tome 03 (1995) no. 1, pp. 21-26. http://geodesic.mathdoc.fr/item/COMIM_1995__3_1_a1/