Polák theorem and $$\mathbf {B}$$ B -relation on varieties of completely regular semigroups
Crossref DOI link: https://doi.org/10.1007/s00233-017-9849-6
Published Online: 2017-01-26
Published Print: 2017-04
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Petrich, Mario
License valid from 2017-01-26