@article{etna_vol50_pp144-163,
  author  = {A. H. Bentbib and M. El Ghomari and C. Jagels and K. Jbilou and L. Reichel},
  title   = {The extended global Lanczos method for matrix function approximation},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {50},
  year    = {2018},
  pages   = {144--163},
  doi     = {10.1553/etna_vol50s144},
}