@article{SE_1957-1958__1__A5_0, author = {de Cahvalho, Carlos A. A.}, title = {Sur les deuxi\`emes obstructions}, journal = {S\'eminaire de topologie et g\'eom\'etrie diff\'erentielle}, note = {talk:13}, pages = {1--13}, publisher = {Secr\'etariat math\'ematique}, volume = {1}, year = {1957-1958}, zbl = {0158.42003}, language = {fr}, url = {http://archive.numdam.org/item/SE_1957-1958__1__A5_0/} }
TY - JOUR AU - de Cahvalho, Carlos A. A. TI - Sur les deuxièmes obstructions JO - Séminaire de topologie et géométrie différentielle N1 - talk:13 PY - 1957-1958 SP - 1 EP - 13 VL - 1 PB - Secrétariat mathématique UR - http://archive.numdam.org/item/SE_1957-1958__1__A5_0/ LA - fr ID - SE_1957-1958__1__A5_0 ER -
de Cahvalho, Carlos A. A. Sur les deuxièmes obstructions. Séminaire de topologie et géométrie différentielle, Tome 1 (1957-1958), Exposé no. 13, 13 p. http://archive.numdam.org/item/SE_1957-1958__1__A5_0/
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