Andrzej Tarlecki

Institute of Informatics
Faculty of Mathematics, Informatics and Mechanics
Warsaw University

ul. Banacha 2, 02-097 Warsaw, Poland.
Phone (secr.): +48 22 5544484
Phone (direct): +48 22 5544475
Fax: +48 22 5544400

and

Institute of Computer Science
Polish Academy of Sciences

ul. Ordona 21, 01-237 Warsaw, Poland.
Phone: +48 22 836 2841
Fax: +48 22 837 6564

E-mail: tarlecki@mimuw.edu.pl