BARTKEVICIUS, S.; SARKAUSKAS, K. Substitution of Algebraic Loops. Elektronika ir Elektrotechnika, [S. l.], v. 20, n. 2, 1999. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/16527. Acesso em: 6 may. 2024.