@article{RSMUP_1980__63__83_0, author = {Zampieri, Giuseppe}, title = {A sufficient condition for existence of real analytic solutions of P.D.E. with constant coefficients, in open sets of $\mathbb {R}^2$}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, volume = {63}, year = {1980}, pages = {83-87}, mrnumber = {605785}, zbl = {0499.35021}, language = {en}, url = {http://dml.mathdoc.fr/item/RSMUP_1980__63__83_0} }
Zampieri, Giuseppe. A sufficient condition for existence of real analytic solutions of P.D.E. with constant coefficients, in open sets of $\mathbb {R}^2$. Rendiconti del Seminario Matematico della Università di Padova, Tome 63 (1980) pp. 83-87. http://gdmltest.u-ga.fr/item/RSMUP_1980__63__83_0/
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