Commutative cancellative semigroups with two generators
Robert E. Hall (1971)
Czechoslovak Mathematical Journal
Similarity:
Robert E. Hall (1971)
Czechoslovak Mathematical Journal
Similarity:
Matthew Gould, Joseph A. Iskra, Péter Pál Pálfy (1986)
Czechoslovak Mathematical Journal
Similarity:
T. Tamura (1969)
Bulletin de la Société Mathématique de France
Similarity: