@incollection{SB_1981-1982__24__315_0,
     author = {Kazdan, Jerry L.},
     title = {Positive energy in general relativity},
     booktitle = {S\'eminaire Bourbaki : volume 1981/82, expos\'es 579-596},
     series = {Ast\'erisque},
     note = {talk:593},
     pages = {315--330},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {92-93},
     year = {1982},
     mrnumber = {689537},
     zbl = {0496.53043},
     language = {en},
     url = {http://www.numdam.org/item/SB_1981-1982__24__315_0/}
}