G. Mele, E. Ringh, D. Ek, F. Izzo, P. Upadhyaya, E. Jarlebring, Preconditioning for Linear Systems, 2020, KD Publishing
@Book{Precondbook, author={G. Mele and E. Ringh and D. Ek and F. Izzo and P. Upadhyaya and E. Jarlebring}, title={Preconditioning for Linear Systems}, publisher={KD Publishing}, year={2020}, url={http://preconditioning.se}, edition={first edition}}