%0 Journal Article %A Zofia Szmydt %A Bogdan Ziemian %T Fundamental solution for operators preserving a quadratic form %J Annales Polonici Mathematici %D 1983 %P 369-386 %V 42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-42-1-369-386/ %R 10.4064/ap-42-1-369-386 %G en %F 10_4064_ap_42_1_369_386