East, James; Ruškuc, Nik Congruence lattices of ideals in categories and (partial) semigroups Memoirs of the American Mathematical Society 1408. Providence, RI: American Mathematical Society (AMS). vii, 129~p. (2023) : [review]Henno, JaakzbMATH Open2023 / 1 p. https://zbmath.org/1515.20009

Signs systematically studied : invitation to Peirce's theoryPietarinen, Ahti-VeikkoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 372-398 https://doi.org/10.12697/SSS.2015.43.4.01 https://www.ester.ee/record=b4554246*est Journal metrics at Scopus Article at Scopus Article at WOS