@article{SEDP_1972-1973____A15_0,
     author = {Ra{\"\i}s, M.},
     title = {Solutions \'el\'ementaires invariantes},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:14},
     pages = {1--9},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1972-1973},
     mrnumber = {467856},
     zbl = {0261.46045},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1972-1973____A15_0/}
}