@misc{indiciaec3d61711c386, title = {An implementation of the look-ahead Lanczos algorithm for non-Hermitian matrices}, author = {Freund, Roland W. and Gutknecht, Martin H. and Nachtigal, Noel M.}, year = {1991}, url = {https://ntrs.nasa.gov/citations/19910023506}, note = {Source identifier: 19910023506} }