Milos Ilic, Ian W. Turner. Krylov subspaces and the analytic grade. Numerical Lin. Alg. with Applic., 12(1):55-76, 2005. [doi]
@article{IlicT05-0, title = {Krylov subspaces and the analytic grade}, author = {Milos Ilic and Ian W. Turner}, year = {2005}, doi = {10.1002/nla.392}, url = {http://dx.doi.org/10.1002/nla.392}, researchr = {https://researchr.org/publication/IlicT05-0}, cites = {0}, citedby = {0}, journal = {Numerical Lin. Alg. with Applic.}, volume = {12}, number = {1}, pages = {55-76}, }