Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1967_172_1_a10, author = {B. Yu. Sternin}, title = {Elliptic (co)boundary morphisms}, journal = {Doklady Akademii Nauk}, pages = {44--47}, publisher = {mathdoc}, volume = {172}, number = {1}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a10/} }
B. Yu. Sternin. Elliptic (co)boundary morphisms. Doklady Akademii Nauk, Tome 172 (1967) no. 1, pp. 44-47. http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a10/