@inproceedings{howell_baboulin_2018, title={Iterative Solution of Sparse Linear Least Squares using LU Factorization}, ISBN={0}, DOI={10.1145/3149457.3149462}, booktitle={PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON HIGH PERFORMANCE COMPUTING IN ASIA-PACIFIC REGION (HPC ASIA 2018)}, author={Howell, Gary W. and Baboulin, Marc}, year={2018}, pages={47–53} }
 @inproceedings{howell_baboulin_2016, title={LU preconditioning for overdetermined sparse least squares problems}, volume={9573}, DOI={10.1007/978-3-319-32149-3_13}, booktitle={Parallel processing and applied mathematics, ppam 2015, pt i}, author={Howell, G. W. and Baboulin, M.}, year={2016}, pages={128–137} }
 @article{howell_demmel_fulton_hammarling_marmol_2008, title={Cache efficient bidiagonalization using BLAS 2.5 operators}, volume={34}, DOI={10.1145/1356052.1356055}, number={3}, journal={ACM Transactions on Mathematical Software}, author={Howell, G. W. and Demmel, J. W. and Fulton, C. T. and Hammarling, S. and Marmol, K.}, year={2008} }
 @article{howell_diaa_2005, title={Algorithm 841: BHESS: Gaussian reduction to a similar banded Hessenberg form}, volume={31}, DOI={10.1145/1055531.1055539}, number={1}, journal={ACM Transactions on Mathematical Software}, author={Howell, G. W. and Diaa, N.}, year={2005}, pages={166–185} }