Parabolic differential inequalities and Chaplighin's method

Instytut Matematyczny Polskiej Akademii Nauk / Institute of Mathematics / Publishing house / Journals and Serials / Annales Polonici Mathematici / All issues

W. Mlak Annales Polonici Mathematici 8 (1960), 139-153 DOI: 10.4064/ap-8-2-139-153