da Costa, D., N. Ferdinand, U. Dias, R. de Sousa Júnior, and M. Latva-aho. “Secrecy Outage Performance of MIMO Wiretap Channels With Multiple Jamming Signals”. Journal of Communication and Information Systems, Vol. 31, no. 1, Feb. 2016, doi:10.14209/jcis.2016.2.