@incollection{AST_1979__66-67__1_0, author = {AST}, title = {Pages pr\'eliminaires}, booktitle = {Travaux de Thurston sur les surfaces - S\'eminaire Orsay}, series = {Ast\'erisque}, pages = {1--3}, publisher = {Soci\'et\'e math\'ematique de France}, number = {66-67}, year = {1979}, zbl = {0406.00016}, language = {fr}, url = {http://archive.numdam.org/item/AST_1979__66-67__1_0/} }