@article{SEDP_1972-1973____A29_0,
     author = {Baiocchi, C. and Baouendi, M. S.},
     title = {\'Equations d'\'evolution \`a coefficients singuliers},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:28},
     pages = {1--10},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1972-1973},
     mrnumber = {407405},
     zbl = {0263.35044},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1972-1973____A29_0/}
}