KAŹMIERCZAK, B. Quasi-homoclinic solutions to a system of ODEs. Archives of Mechanics, Warsaw, Poland, v. 51, n. 1, p. 105–120, 1999. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v51p105. Acesso em: 19 nov. 2025.