@article{WittrockVorholt2015,
  author    = {Ulrich Wittrock and Christian Vorholt},
  title     = {Spatial hole burning in Yb:YAG thin-disk lasers},
  journal   = {Appl. Phys. B},
  volume    = {120},
  pages     = {711 -- 721},
  doi       = {10.25974/fhms-823},
  year      = {2015},
}