%0 Book Section %A Persson, J. %T Singular holomorphic solutions of linear partial differential equations with holomorphic coefficients and nonanalytic solutions of equations with analytic coefficients %B Analytic solutions of partial differential equations - Trento, 1981 %A Collectif %S Astérisque %D 1981 %P 223-247 %N 89-90 %I Société mathématique de France %U http://archive.numdam.org/item/AST_1981__89-90__223_0/ %G en %F AST_1981__89-90__223_0