@article{RSMUP_1982__67__85_0,
     author = {Zanghirati, L.},
     title = {Iterati di operatori e regolarit\`a {Gevrey} microlocale anisotropa},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {85--104},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {67},
     year = {1982},
     mrnumber = {682703},
     zbl = {0516.35020},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1982__67__85_0/}
}