@book{JohnsenKrollLange1993,
  author    = {Dieter Johnsen and J{\"u}rgen Kroll and Reinhard Lange},
  title     = {Ern{\"a}hrung - Umwelt - Gesundheit : Teil 1},
  editor    = {Klaus-Peter Berndt and Erich Sch{\"a}fer},
  isbn      = {3-929757-17-6},
  year      = {1993},
}