@article{etna_vol58_pp115-135,
  author  = {Christian E. Schaerer and Daniel B. Szyld and Pedro J. Torres},
  title   = {A posteriori superlinear convergence bounds for block conjugate gradient},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {58},
  year    = {2023},
  pages   = {115--135},
  doi     = {10.1553/etna_vol58s115},
}