@article{SAC_1967-1968__2__A6_0, author = {Olivier, Jean-Pierre}, title = {Anneaux absolument plats universels et \'epimorphismes \`a buts r\'eduits}, journal = {S\'eminaire Samuel. Alg\`ebre commutative}, note = {talk:6}, publisher = {Secr\'etariat math\'ematique}, volume = {2}, year = {1967-1968}, zbl = {0162.05701}, language = {fr}, url = {http://archive.numdam.org/item/SAC_1967-1968__2__A6_0/} }