@article{BSMF_1997__125_1_93_0,
     author = {Bergery, L.B\'erard and Ikemakhen, A.},
     title = {Sur l{\textquoteright}holonomie des vari\'et\'es pseudo-riemanniennes de signature $(n,n)$},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {93--114},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {125},
     number = {1},
     year = {1997},
     doi = {10.24033/bsmf.2300},
     zbl = {0916.53033},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.2300/}
}