Chajda, Ivan
[Editor];
Eigenthaler, Günther
[Editor];
Halaš, Radomir
[Editor];
Müller, Winfried B.
[Editor];
Vogel, Hans-Jürgen
[Editor];
Zedník, Josef
[Editor];
Zedník, Josef
[Other]
;
Workshop on General Algebra 56 1998 Olomouc,
Summer School on Universal Algebra and Ordered Sets 1998 Velké Karlovice