PETROVIĆ, S.; BJELICA, D. .; RADENKOVIĆ, B. Loyalty system development based on blockchain technology. E-business technologies conference proceedings, [S. l.], v. 1, n. 1, p. 157–161, 2021. Disponível em: https://ebt.rs/journals/index.php/conf-proc/article/view/78. Acesso em: 4 may. 2024.