@incollection{SB_1993-1994__36__335_0,
     author = {M\"uller, Werner},
     title = {The eta invariant (some recent developments)},
     booktitle = {S\'eminaire Bourbaki : volume 1993/94, expos\'es 775-789},
     series = {Ast\'erisque},
     note = {talk:787},
     pages = {335--364},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {227},
     year = {1995},
     mrnumber = {1321653},
     zbl = {0842.58069},
     language = {en},
     url = {http://www.numdam.org/item/SB_1993-1994__36__335_0/}
}