@article{CRMATH_2002__335_2_167_0, author = {Nicolas Gouillon}, title = {Un lemme de z\'eros}, journal = {Comptes Rendus. Math\'ematique}, pages = {167--170}, publisher = {Elsevier}, volume = {335}, number = {2}, year = {2002}, doi = {10.1016/S1631-073X(02)02422-6}, language = {fr}, }