Minimax sequential estimation for the multinomial and gamma processes M. Wilczyński — 1985 Applicationes Mathematicae
On the topological classification of pseudofree group actions on 4-manifolds. I. Dariusz, M. Wilczynski — 1994 Mathematische Zeitschrift
Estimation under sampling from a finite population S. Trybuła; M. Wilczyński — 1985 Applicationes Mathematicae