Free products of doppelsemigroups
Crossref DOI link: https://doi.org/10.1007/s00012-017-0431-6
Published Online: 2017-02-09
Published Print: 2017-06
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Zhuchok, Anatolii V.
License valid from 2017-02-09