@article{etna_vol51_pp512-528, author = {Ren\'e Kehl and Reinhard Nabben and Daniel B. Szyld}, title = {Adaptive Multilevel Krylov Methods}, journal = {Electron. Trans. Numer. Anal.}, volume = {51}, year = {2019}, pages = {512--528}, doi = {10.1553/etna_vol51s512}, }