@article{Croux_2010,
title={The k-step spatial sign covariance matrix},
volume={4},
ISSN={1862-5355},
url={http://dx.doi.org/10.1007/s11634-010-0062-7},
DOI={10.1007/s11634-010-0062-7},
number={2–3},
journal={Advances in Data Analysis and Classification},
publisher={Springer Science and Business Media LLC},
author={Croux,
C. and Dehon,
C. and Yadine,
A.},
year={2010},
month=jun,
pages={137–150} }