A characterisation of the rate of approximation of the Baskakov-Kantorovich operator. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 112, p. 17–29, 2025. DOI: 10.60063/gsu.fmi.112.17-29. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/1915. Acesso em: 14 dec. 2025.