@article{AIF_1997__47_3_945_0, author = {Meigniez, Ga\"el}, title = {Prolongement des homotopies, $Q$-vari\'et\'es et cycles tangents}, journal = {Annales de l'Institut Fourier}, pages = {945--965}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {47}, number = {3}, year = {1997}, doi = {10.5802/aif.1587}, zbl = {0870.57040}, mrnumber = {98h:57052}, language = {fr}, url = {http://www.numdam.org/articles/10.5802/aif.1587/} }