@article{SD_1956-1957__10__A12_0,
     author = {Lesieur, L.},
     title = {Th\'eorie alg\'ebrique de l'orientation},
     journal = {S\'eminaire Dubreil. Alg\`ebre et th\'eorie des nombres},
     note = {talk:12},
     pages = {1--12},
     publisher = {Secr\'etariat math\'ematique},
     volume = {10},
     year = {1956-1957},
     zbl = {0116.38004},
     language = {fr},
     url = {http://www.numdam.org/item/SD_1956-1957__10__A12_0/}
}