Inzunza-González, E. , Cruz-Hernández, C. , López-Gutiérrez, R. , García-Guerrero, E. , Cardoza- Avendaño, L. , Serrano-Guerrero, H. (2009), 'Software to Encrypt Messages Using Public-Key Cryptography', World Academy of Science, Engineering and Technology, Open Science Index 30, International Journal of Information and Communication Engineering, 3(6), 1616 - 1620.