@incollection{JEDP_1997____A7_0,
     author = {Ebenfelt, Peter},
     title = {Nondegeneracy conditions and normal forms for real hypersurfaces in complex space},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {7},
     pages = {1--15},
     publisher = {Ecole polytechnique},
     year = {1997},
     zbl = {01808667},
     language = {en},
     url = {http://www.numdam.org/item/JEDP_1997____A7_0/}
}