Stergios Papadimitriou Anastasios Bezerianos Tassos Bountis Georgios Pavlides Secure communication protocols with discrete nonlinear chaotic maps. 61-72 2001 47 Journal of Systems Architecture 1 http://dx.doi.org/10.1016/S1383-7621(00)00040-0 db/journals/jsa/jsa47.html#PapadimitriouBBP01