On the non-convergence of successive approximations in the Darboux problem for the equation z x y ' ' = f ( x , y , z ) M. Kisielewicz — 1977 Colloquium Mathematicae
On the existence of solutions of differential-integral equations with a lagging argument M. Kisielewicz — 1970 Commentationes Mathematicae The article contains no abstract
Existence theorem for functional-differential contingent equations M. Kisielewicz; T. Janiak — 1977 Annales Polonici Mathematici
Minimal selections and fixed point sets of multivalued contraction mappings in uniformly convex Banach spaces L. Drewnowski; M. Kisielewicz; L. Rybiński — 1989 Commentationes Mathematicae The article contains no abstract