SKRZYPCZAK, Waldemar. Topological Modelling of Grammatical and Lexical Aspect in English . Research in Language, Poland, v. 5, p. 185–204, 2007. DOI: 10.2478/v10015-007-0008-0. Disponível em: https://www.czasopisma.uni.lodz.pl/research/article/view/8204. Acesso em: 8 aug. 2026.