On the Properties of the Möbius Function
Jastrzebska, Magdalena, Grabowski, Adam
Preface
Grabowski, Adam, Shidama, Yasunari
On the Permanent of a Matrix
Romanowicz, Ewa, Grabowski, Adam
On Two Alternative Axiomatizations of Lattices by McKenzie and Sholander
Grabowski, Adam, Sawicki, Damian
Topological Interpretation of Rough Sets
Grabowski, Adam
Polygonal Numbers
Grabowski, Adam