ZAMKOVOY, S.; TZANOV, V. NON-EXISTENCE OF FLAT PARACONTACT METRIC STRUCTURES IN DIMENSION GREATER THAN OR EQUAL TO FIVE. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 100, p. 27–34, 2011. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/244. Acesso em: 23 dec. 2024.