PETROV, G.; KADREV, V. Monitoring and Internet connectivity system for small farms in remote and hard to reach regions. Yearbook Telecommunications, [S. l.], v. 6, p. 137–145, 2019. DOI: 10.33919/YTelecomm.19.6.14. Disponível em: https://ojs.nbu.bg/index.php/YT/article/view/350. Acesso em: 23 apr. 2024.