All correspondence concerning subscriptions (also back issues) should be addressed directly to the following address
Wieslaw A. Dudek
Faculty of Pure and Applied Mathematics
Wroclaw University of Technology
ul. Wybrzeze Wyspianskiego 27
50-370 Wroclaw
Poland
e-mail: wieslaw.dudek@pwr.edu.pl
Subscription for one volume (two issues) is 70 euro.