@article{AIF_1973__23_2_127_0, author = {Osborn, Howard}, title = {La g\'eom\'etrie diff\'erentielle dans la cat\'egorie $PL$}, journal = {Annales de l'Institut Fourier}, pages = {127--134}, publisher = {Institut Fourier}, address = {Grenoble}, volume = {23}, number = {2}, year = {1973}, doi = {10.5802/aif.463}, zbl = {0267.57011}, mrnumber = {48 #12550}, language = {fr}, url = {https://aif.centre-mersenne.org/articles/10.5802/aif.463/} }