On the absorption coefficient of random dispersions. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 86, n. 2, p. 17–29, 1994. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/504. Acesso em: 12 jan. 2026.