1. Alba, E., Santana, R., Ochoa, A., Lazo, M.: Finding Typical Testors By Using an Evolutionary Strategy. In: Proc. of V Iberoamerican Workshop on Pattern Recognition, Lisbon, Portugal, pp. 267–278 (2000)
2. De Jong, K.: Evolutionary computation, vol. 1, pp. 52–56. John Wiley & Sons, Inc., Chichester (2009)
3. Dmitriev, A., Zhuravlev, I., Krendeliev, F.: About mathematical principles and phenomena classification. Diskretni Analiz (Rusia) 7, 3–15 (1966)
4. Lazo-Cortes, M., Ruiz-Shulcloper, J., Alba-Cabrera, E.: An Overview of the evolution of the concept of testor. Pattern Recognition 34(4), 753–762 (2001)
5. Martinez-Trinidad, J., Guzman-Arenas, A.: The Logical Combinatorial approach for pattern recognition. An overview through selected Works. Pattern Recognition 34(4), 741–751 (2001)