@ARTICLE {21421,
author={M.R.O de Oliveira and M. Vilela and A. Pacheco and R. Valadas and P. Salvador},
doi={10.17713/ajs.v46i3-4.673},
journal={Austrian Journal of Statistics},
title={Extracting Information from Interval Data Using Symbolic Principal Component Analysis},
year={2017},
month={April},
volume={46},
number={3-4},
pages={79-87},
ISSN={1026-597X}
}