![](/img/cover-not-exists.png)
The lattice of r-unipotent congruences on a regular semigroup
Gracinda M. S. GomesVolume:
33
Year:
1986
Language:
english
Pages:
15
Journal:
Semigroup Forum
DOI:
10.1007/bf02573190
File:
PDF, 419 KB
english, 1986