Sossa-Azuela, J. H., Santiago-Montero, R., Pérez-Cisneros, M. and Rubio-Espino, E. (2013) “Computing the Euler Number of a Binary Image Based on a Vertex Codification”, Journal of Applied Research and Technology, 11(3). doi: 10.1016/S1665-6423(13)71546-3.