@incollection{AST_1987__154-155__39_0, author = {Tromba, Anthony J.}, title = {A proof of {Douglas'} theorem on the existence of disc like minimal surfaces spanning {Jordan} contours on $R^n$}, booktitle = {Th\'eorie des vari\'et\'es minimales et applications}, author = {Collectif}, series = {Ast\'erisque}, publisher = {Soci\'et\'e math\'ematique de France}, number = {154-155}, year = {1987}, zbl = {0635.53033}, mrnumber = {955058}, language = {en}, url = {http://www.numdam.org/item/AST_1987__154-155__39_0/} }