@article{RSMUP_1980__63__145_0,
     author = {Zampieri, Giuseppe},
     title = {A link between $C^\infty $ and analytic solvability for {P.D.E.} with constant coefficients},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {145--150},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {63},
     year = {1980},
     zbl = {0471.35017},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1980__63__145_0/}
}