1. Simulated annealing;Aarts,1997
2. Becker, R., Chambers, J., Wilks, A., 1988. The New S Language. A programming Environment for Data Analysis and Graphics. Wadsworth and Brooks/Cole Advanced Books and Software, Pacific Grove, CA.
3. Choix de variables en analyse en composants principales;Bonifas;Rev. Statist. Appl,1984
4. Loadings and correlations in the interpretation of principal components;Cadima;J. Appl. Statist,1995
5. Variable selection and the interpretation of principal subspaces;Cadima;J. Agricultural, Biol. Environ. Statist,2001