POPOV, Valery; KRAJNJUCHENKO, Irina. System as a scientific concept. Physics of Consciousness and Life, Cosmology and Astrophysics, [S. l.], v. 13, n. 1, p. 55–63, 2013. Disponível em: https://physics.socionic.info/index.php/physics/article/view/75. Acesso em: 11 may. 2025.