• Gusev, Sergey V. ; Vernikov, Boris M. Two weaker variants of congruence permutability for monoid varieties Semigroup Forum 103, No. 1, 106-152 (2021) : [review]Henno, JaakzbMATH Open2022 / 1 p. https://zbmath.org/1484.20100
  • On the utility of Robinson-Amitsur ultrafiltersZusmanovich, PashaJournal of algebra2013 / p. 268-286 https://doi.org/10.1016/j.jalgebra.2013.04.024 https://www.scopus.com/sourceid/23814 https://www.scopus.com/record/display.uri?eid=2-s2.0-84892500270&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1016%2Fj.jalgebra.2013.04.024%29 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20ALGEBRA&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000320415100015