@incollection{MSMF_1976__46__83_0,
     author = {Tromba, Antony},
     title = {The {Euler} characteristic of vector fields on {Banach} manifolds and the problem of {Plateau}},
     booktitle = {Journ\'ees sur la g\'eom\'etrie de la dimension infinie (Lyon, 1975)},
     series = {Bulletin de la Soci\'et\'e math\'ematique de France. M\'emoire},
     pages = {83--89},
     year = {1976},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {46},
     doi = {10.24033/msmf.187},
     mrnumber = {55 #11298},
     zbl = {0382.58002},
     url = {https://www.numdam.org/articles/10.24033/msmf.187/}
}