HORVÁTH, Endre; MANTHEY, Axel. GPRS Function Test using TTCN. Periodica Polytechnica Electrical Engineering, [S. l.], v. 44, n. 1, p. 65–76, 2000. Disponível em: https://pp.bme.hu/ee/article/view/997. Acesso em: 3 jul. 2024.