
Assistant Professor
Faculty of Mathematics and Information Science
Warsaw University of Technology
Koszykowa 75, 00-662 Warsaw, Poland
e-mail: A.Cena%mini.pw.edu.pl, cena%rexamine.com
Assistant Professor
Faculty of Mathematics and Information Science
Warsaw University of Technology
Koszykowa 75, 00-662 Warsaw, Poland
e-mail: A.Cena%mini.pw.edu.pl, cena%rexamine.com