Voir la notice de l'article provenant de la source European Digital Mathematics Library
@misc{ELMA_1989__44_3_141470, title = {A note on {L'H\^opital's} rule.}, journal = {Elemente der Mathematik}, pages = {150--153}, publisher = {mathdoc}, volume = {44}, number = {3}, year = {1989}, zbl = {0702.26004}, url = {http://geodesic.mathdoc.fr/item/ELMA_1989__44_3_141470/} }
A note on L'Hôpital's rule.. Elemente der Mathematik, Tome 44 (1989) no. 3, pp. 150-153. http://geodesic.mathdoc.fr/item/ELMA_1989__44_3_141470/