Citation: A. Jamiolkowski et al., Proceedings of the XXXI Symposium on Mathematical Physics - May 18-21, 1999 Toruri, Poland - Foreword, REP MATH PH, 46(1-2), 2000, pp. 3-4
Citation: A. Jamiolkowski et al., Proceedings of the XXX Symposium on Mathematical Physics - May 26-30, 1998Torun, Poland - Foreword, REP MATH PH, 44(1-2), 1999, pp. 3-4