Almeida, Jorge; Costa, Alfredo. Profinite topologie : [review]Henno, JaakzbMATH Open2023 / 2 p. https://zbmath.org/07469515 Almeida, Jorge; Klíma, Ondřej. Representations of relatively free profinite semigroups, irreducibility, and order primitivity : [review]Henno, JaakZentralblatt MATH2020 / 1 p https://zbmath.org/?q=an%3A1443.20085 Lee, E. W. H.; Rhodes, J.; Steinberg, B. Join irreducible semigroups : [review]Henno, JaakzbMATH Open2022 / 1 p. https://zbmath.org/1483.20089 Mashevitzky, G. Identical inclusions of semilattices : [review]Henno, JaakZentralblatt MATH2020 / 1 p https://zbmath.org/?q=an:1443.20085