A. Raschellà, G. Araniti, A. Iera, и A. Molinaro. PSATS, том 15 из Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, стр. 85-93. Springer, (2009)
A. Raschellà, G. Araniti, A. Umbert, A. Iera, и A. Molinaro. PSATS, том 71 из Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, стр. 40-49. Springer, (2011)