Mohammad Faisal Uddin, Amr M. Youssef. Cryptanalysis of Simple Substitution Ciphers Using Particle Swarm Optimization. In IEEE International Conference on Evolutionary Computation, CEC 2006, part of WCCI 2006, Vancouver, BC, Canada, 16-21 July 2006. pages 677-680, IEEE, 2006. [doi]
Abstract is missing.