Relations among various criteria of uniqueness for ordinary differential equations Józef Banaś; Andrzej Hajnosz; Stanisław Wędrychowicz — 1981 Commentationes Mathematicae Universitatis Carolinae
On the equation x ' = f ( t , x ) in Banach spaces Józef Banaś; Andrzej Hajnosz; Stanisław Wędrychowicz — 1982 Commentationes Mathematicae Universitatis Carolinae
On convexity and smoothness of Banach space Józef Banaś; Andrzej Hajnosz; Stanisław Wędrychowicz — 1990 Commentationes Mathematicae Universitatis Carolinae