On the Properties of the Möbius Function
Jastrzebska, Magdalena, Grabowski, Adam
Two Axiomatizations of Nelson Algebras
Grabowski, Adam
Elementary Number Theory Problems. Part VI
Grabowski, Adam
Preface
Grabowski, Adam, Shidama, Yasunari
Introduction to Formal Preference Spaces
Niewiadomska, Eliza, Grabowski, Adam
Tarski Geometry Axioms – Part II
Coghetto, Roland, Grabowski, Adam