Cross, Marilyn. “ Time and Media: An Empirical Study of Communication Patterns and the Design and Development of Software for Advanced Teleconununications Services”. Estudios Ingleses de la Universidad Complutense, no. 3 (January 1, 1995): 11. Accessed November 25, 2024. https://revistas.ucm.es/index.php/EIUC/article/view/EIUC9595110011A.