@incollection{JEDP_1988____A16_0,
     author = {Hemida, Mohammed Tazi},
     title = {R\'egularit\'e $L^p$ maximale pour une classe d{\textquoteright}op\'erateurs \`a caract\'eristiques multiples},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {16},
     pages = {1--4},
     publisher = {Ecole polytechnique},
     year = {1988},
     zbl = {0683.35012},
     language = {fr},
     url = {http://www.numdam.org/item/JEDP_1988____A16_0/}
}