S. Janson, D. Merkle, M. Middendorf, H. ElGindy, H. Schmeck
On Enforced Convergence of ACO and its Implementation on the Reconfigurable Mesh Architecture Using Size Reduction Tasks
Journal of Supercomputing, 26(3): 221-238, 2003.
Preliminary version in:Proceedings of the Second International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA'02), Las Vegas, CSREA Press, 2002, 3-9.

D. Merkle and M. Middendorf
An Ant Algorithm with Global Pheromone Evaluation for Scheduling a Single Machine
Applied Intelligence, 18(1): 105-111, 2003.