SZCZEPAŃSKI, J.; GÓRSKI, K.; KOTULSKI, Z.; PASZKIEWICZ, A.; ZUGAJ, A. Some models of chaotic motion of particles and their application to cryptography. Archives of Mechanics, Warsaw, Poland, v. 51, n. 3-4, p. 509–528, 1999. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v51p509. Acesso em: 7 jan. 2026.