1. Collignon, A., Maes, F., Delaere, D., Vandermeulen, D., Suetens, P., & Marchal, G. (1995). Automated multi-modality image registration based on information theory. In Bizais, Y., Barillot, C., Di Paola, R. (Eds.), Information Processing in Medical Imaging (pp. 263–274). Dordrecht: Kluwer Academic.
2. Cruz, P. (2005a). Almost sure convergence and asymptotical normality of a generalization of Kesten’s stochastic approximation algorithm for multidimensional case (Technical Report). Cadernos de Matemática, Série de Investigação, Collection of University of Aveiro, Department of Mathematics. http://193.136.81.248/dspace/handle/2052/74 .
3. Cruz, P. (2005b). Aproximação estocástica com valor do passo adaptativo. PhD thesis, University of Aveiro, Department of Mathematics. http://193.136.81.248/dspace/handle/2052/103 .
4. Dice, L. R. (1945). Measures of the amount of ecologic association between species. Ecology, 26(3), 297–302.
5. Hermosillo, G., Chefd’hotel, C., & Faugeras, O. (2002). Variational methods for multimodal image matching. International Journal of Computer Vision, 50(3), 329–343.