STANISAVLJEVIĆ, N.; STOJANOVIĆ, D.; PETROVIĆ, L. Open Innovation and Crowdsourcing: Challenges and Opportunities for Serbian Railways . E-business technologies conference proceedings, [S. l.], v. 2, n. 1, p. 36–41, 2022. Disponível em: https://ebt.rs/journals/index.php/conf-proc/article/view/137. Acesso em: 23 apr. 2024.