On three lattices that belong to every semigroup

Bibliographic Details
Main Author: Šulka, Róbert, 1927- (Author)
Format: Article
Language:Slovak
English
PhysicalDescription:Res. rus., lit. 7 zázn. v angl., nem., slov., ruš.
Subjects:
Description
Physical Description:Res. rus., lit. 7 zázn. v angl., nem., slov., ruš.