LANGMANN, Reinhard. The Web-controlled mobile Communication Robot Ego Secundus. International Journal of Online and Biomedical Engineering (iJOE), [S. l.], v. 3, n. 1, 2007. DOI: 10.3991/ijoe.v3i1.362. Disponível em: https://online-journals.org/index.php/i-joe/article/view/362. Acesso em: 30 apr. 2024.