International contacts
- D.D. ANDERSON, Department of Mathematics, The University of Iowa, Iowa City, USA.
- A. BIALOSTOCKI, University of Idoho, Mosow, Idaho, USA.
- S.T. CHAPMAN, Department of Mathematics and Statistics, Sam Houston State University, Huntsville, USA.
- A. DUJELLA, Department of Mathematics, University of Zagreb, Zagreb, Croatia.
- C. ELSHOLTZ, Department of Mathematics, Royal Holloway, University of London, London, UK.
- Y. EDEL, Department of Pure Mathematics and Computer Algebra, Ghent University, Belgium.
- A. FACCHINI, Dipartimento di Matematica Pura e Applicata, Universita degli Studi di Padova, Padova, Italy.
- M. FONTANA, Dipartimento di Matematica, Universita degli Studi "Roma Tre", Rome, Italy.
- M. FREEZE, Department of Mathematics and Statistics, The University of North Carolina at Wilmington, USA.
- W. GAO, Center for Combinatorics, Nankai University, Tianjin, China.
- R. GÖBEL, FB Mathematik, Universitaet Duisburg-Essen (Campus Essen), Essen, Germany.
- Y. ould HAMIDOUNE, Equipe Combinatoire et Optimisation, Universite Pierre et Marie Curie (Paris 6), Paris, France.
- J. KACZOROWSKI, Zaklad Algebry i Teorii Liczb, Wydzial Matematiky i Informatiky, Uniwersytet im. Adama Mickiewicza, Poznan, Poland.
- J. KOSTRA, Katedra Matematiky, University of Ostrava, Ostrava, Czech Republic.
- U. KRAUSE, FB3 - Mathematik, Universitaet Bremen, Bremen, Germany.
- S. LEV, Department of Mathematics, University of Haifa at Oranim, Israel.
- W. NARKIEWICZ, Instytut Matematyczny Uniwersytetu Wroclawskiego, Wroclaw, Poland.
- O. ORDAZ, Department of Mathematics,Universidad Central de Venezuela, Caracas, Venezuela.
- A. PETHÖ, Department of Computer Science, University of Debrecen, Debrecen, Hungary.
- A. PLAGNE, Centre de Mathematiques Laurent Schwartz, Ecole polytechnique, Palaiseau, France.
- M. RADZIEJEWSKI, Zaklad Algebry i Teorii Liczb, Wydzial Matematiky i Informatiky, Uniwersytet im. Adama Mickiewicza, Poznan, Poland.
- O. SERRA, Department of Applied Mathematics, Universitat Politecnica de Catalunya, Barcelona, Spain.
- W.W. SMITH, Department of Mathematics, The University of North Carolina at Chapel Hill, Chapel Hill, USA.
- R. THANGADURAI, Harish-Chandra Research Institute, Allahabad, India.
- R. WIEGAND, Department of Mathematics, University of Nebraska-Lincoln, Lincoln, USA.
- J.J. ZHUANG, Institute of Mathematics, Dalian University of Technology, Dalian, China.
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