@incollection{JEDP_1979____A2_0,
     author = {Alinhac, Serge and Baouendi, Mohamed S.},
     title = {Unicit\'e forte pour des op\'erateurs elliptiques : in\'egalit\'es et contre-exemples},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {2},
     pages = {1--2},
     publisher = {Ecole polytechnique},
     year = {1979},
     zbl = {0418.35077},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1979____A2_0/}
}