Ivan Chajda
1. leden 1946
Proceedings of the Olomouc Workshop on General Algebra, "56. Arbeitstagung Allgemeine Algebra", June 12 - 14, 1998 and of the Summer School '98 on Universal Algebra and Ordered Sets, Velké Karlovice, August 31 - September 5, 1998
Ivan Chajda
Proceedings of the 60th Workshop on General Algebra, "60. Arbeitstagung Allgemeine Algebra", University of Technology Dresden, June 22 - 25, 2000 and of the Summer School '99 on General Algebra and Ordered Sets, Velké Karlovice, August 30 - September 4, 1999
Ivan ChajdaProceedings of the 64th Workshop on General Algebra, "64. Arbeitstagung Allgemeine Algebra", University of Olomouc, May 30 - June 2, 2002 and of the 65th Workshop on General Algebra, "65. Arbeitstagung Allgemeine Algebra", University of Potsdam, March 21 - 23, 2003
Ivan Chajda