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@article{CM_1972__24_1_1_0, author = {Brezuleanu, A.}, title = {Smoothness and regularity}, journal = {Compositio Mathematica}, pages = {1--10}, publisher = {Wolters-Noordhoff Publishing}, volume = {24}, number = {1}, year = {1972}, mrnumber = {309932}, zbl = {0232.14002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1972__24_1_1_0/} }
Brezuleanu, A. Smoothness and regularity. Compositio Mathematica, Tome 24 (1972) no. 1, pp. 1-10. http://geodesic.mathdoc.fr/item/CM_1972__24_1_1_0/