ALMOST CONTACT B-METRIC STRUCTURES AND THE BIANCHI CLASSIFICATION OF THE THREE-DIMENSIONAL LIE ALGEBRAS. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 102, p. 133–144, 2015. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/67. Acesso em: 11 jan. 2026.