@article{JEDP_1986____A12_0,
     author = {Rodino, Luigi},
     title = {Propagation of singularities and local solvability in {Gevrey} classes},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {12},
     pages = {1--11},
     publisher = {Ecole polytechnique},
     year = {1986},
     language = {en},
     url = {http://www.numdam.org/item/JEDP_1986____A12_0/}
}