@article{AM2_1973__9_136328,
     author = {PAUL ARMINJON},
     title = {Sur un probleme d'existence de {Lions} pour une equation differentielle op\'erationnelle},
     journal = {Aequationes mathematicae},
     pages = {91--98},
     publisher = {mathdoc},
     volume = {9},
     year = {1973},
     zbl = {0257.46031},
     url = {http://geodesic.mathdoc.fr/item/AM2_1973__9_136328/}
}