UML Extension by Roles
DAHCHOUR, Mohamed et al.
UML Extension by Roles.
Electronic Journal of Information Technology, [S.l.], june 2007.
ISSN 1114-8802.
Available at: <https://www.revue-eti.net/index.php/eti/article/view/40/2007>. Date accessed: 05 aug. 2019.