%0 Journal Article %A Väinö Jalava %T Remarks on the regularity of the solutions of a linear partial differential equation with constant coefficients %J Annales Fennici Mathematici %D 1973 %V 521-560 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1973.530/ %R 10.5186/aasfm.1973.530 %G en %F AFM_1973_521-560_a30