@incollection{SB_1984-1985__27__57_0, author = {Coates, John}, title = {The work of {Gross} and {Zagier} on {Heegner} points and the derivatives of $L$-series}, booktitle = {S\'eminaire Bourbaki : volume 1984/85, expos\'es 633-650}, author = {Collectif}, series = {Ast\'erisque}, note = {talk:635}, publisher = {Soci\'et\'e math\'ematique de France}, number = {133-134}, year = {1986}, zbl = {0608.14020}, mrnumber = {837214}, language = {en}, url = {http://archive.numdam.org/item/SB_1984-1985__27__57_0/} }