Odagiri, Kazuya, Shogo Shimizu, and Naohiro Ishii. “Implementation of the Basic System in the Cloud Type Virtual Policy Based Network Management Scheme for the Common Use Between Plural Organizations”. INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 15, no. 12 (October 22, 2016): 7297-7307. Accessed June 15, 2019. https://cirworld.com/index.php/ijct/article/view/3972.