1. Almeida, C. P., Gonçalves, R. A., Goldbarg, M. C., Goldbarg, E. F. G., & Delgado, M. R. (2007). TA-PFP: a transgenetic algorithm to the protein folding problem. In International conference on intelligent systems design and applications, ISDA (pp. 163–168). New York: IEEE Computer Society.
2. Almeida, C. P., Gonçalves, R. A., Delgado, M. R., Goldbarg, E. F., & Goldbarg, M. C. (2010). A transgenetic algorithm for the bi-objective traveling purchaser problem. In IEEE world congress on computational intelligence (pp. 719–726). Barcelona: IEEE Press.
3. Arroyo, J., Vieira, P., & Vianna, D. (2008). A grasp algorithm for the multi-criteria minimum spanning tree problem. Annals of Operations Research, 159, 125–133. doi: 10.1007/s10479-007-0263-4 .
4. Lecture notes in computer science;S. Bleuler,2003
5. Bontoux, B., & Feillet, D. (2008). Ant colony optimization for the traveling purchaser problem. Computers & Operations Research, 35(2), 628–637.