@incollection{SchnerrDohrmannJantzenetal.1989,
  author    = {Schnerr, G. H. and Dohrmann, U. and Jantzen, H.-A. and Huber, R. R.},
  title     = {" Transsonischen Str{\"o}mungen mit Relaxation und Energiezufuhr durch Wasserdampfkondensation"},
  series = {Str{\"o}mungsmechanik und Str{\"o}mungsmaschinen 40 (eds. Felsch, K.O.; Marcinowski, H.; Zierep, J.)},
  booktitle = {Str{\"o}mungsmechanik und Str{\"o}mungsmaschinen 40 (eds. Felsch, K.O.; Marcinowski, H.; Zierep, J.)},
  publisher = {G.Braun},
  address   = {Karsruhe},
  pages     = {39 -- 79},
  year      = {1989},
  language  = {de}
}
@misc{SchnerrJantzenHuber1991,
  author    = {Schnerr, G. H. and Jantzen, H.-A. and Huber, R. R.},
  title     = {"Digital Image Processing for Schlieren Optics", EUROMECH 279 "Image Analysis as Measuring Technique in Flows", Delft University of Technology, the Netherlands, July 02-05},
  year      = {1991},
  language  = {en}
}