@article {Cerdeira2004,
	title = {Computational aspects of algorithms for variable selection in the context of principal components},
	journal = {Computational Statistics and Data Analysis},
	volume = {47},
	number = {2 SPEC. ISS.},
	year = {2004},
	note = {n/a},
	pages = {225-236},
	abstract = {n/a},
	author = {Cadima, J. and Cerdeira, J.O. and Minhoto, M.}
}
