@incollection{SB_1972-1973__15__307_0, author = {Steinberg, Robert}, title = {Abstract homomorphisms of simple algebraic groups}, booktitle = {S\'eminaire Bourbaki : vol. 1972/73, expos\'es 418-435}, series = {S\'eminaire Bourbaki}, note = {talk:435}, pages = {307--326}, publisher = {Springer-Verlag}, number = {15}, year = {1974}, mrnumber = {414732}, zbl = {0294.20040}, language = {en}, url = {http://archive.numdam.org/item/SB_1972-1973__15__307_0/} }