@incollection{AST_1985__131__189_0,
     author = {Baouendi, M. S. and Rothschild, Linda Preiss},
     title = {Analytic approximation for homogeneous solutions of invariant differential operators on {Lie} groups},
     booktitle = {Colloque en l'honneur de Laurent Schwartz - Volume 1},
     series = {Ast\'erisque},
     pages = {189--199},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {131},
     year = {1985},
     mrnumber = {816747},
     zbl = {0597.58048},
     language = {en},
     url = {http://www.numdam.org/item/AST_1985__131__189_0/}
}