HENRIQUES, Sheldon; LEWIS, Shaun; KOTIAN, Gautam. An IoT-Based Vending Machine Using Blockchain for Enhanced Security. Journal of ISMAC, [S. l.], v. 4, n. 3, p. 153–164, 2022. DOI: 10.36548/jismac.2022.3.002. Disponível em: https://irojournals.com/iroismac/article/view/964. Acesso em: 30 mar. 2026.