@ARTICLE {4209, author={J. J. Júdice and P. Amaral and L. M. Fernandes and H. Sherali}, doi={10.1007/s10898-009-9403-5}, journal={Journal of Global Optimization}, title={On optimal zero-preserving corrections for inconsistent linear systems}, year={2009}, month={January}, volume={45}, number={1}, pages={645-666}, ISSN={0925-5001} }