@article{etna_vol52_pp154-194,
  author  = {Olaf Steinbach and Marco Zank},
  title   = {Coercive space-time finite element methods for initial boundary value problems},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {52},
  year    = {2020},
  pages   = {154--194},
  doi     = {10.1553/etna_vol52s154},
}