Almost periodic solutions of Lotka – Volterra systems with diffusion and nonfixed times of pulse action. Neliniini Kolyvannya, [S. l.], v. 21, n. 3, p. 305–322, 2018. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/912. Acesso em: 21 jan. 2026.