@book{EtteFontiusHassleretal.1999,
  author    = {Ottmar Ette and Martin Fontius and Gerda Haßler and Peter Jehle},
  title     = {Werner Krauss: Wege - Werke - Wirkungen},
  isbn      = {3-8305-0023-8},
  year      = {1999},
}