@article{Horiike2018, author = "Naoto Horiike and Eiji Okamoto and Tetsuya Yamamoto", title = "{Additional file 1: of A downlink non-orthogonal multiple access scheme having physical layer security}", year = "2018", month = "8", url = "https://springernature.figshare.com/articles/figure/Additional_file_1_of_A_downlink_non-orthogonal_multiple_access_scheme_having_physical_layer_security/6981941", doi = "10.6084/m9.figshare.6981941.v1" }