@incollection{RitterKraatz2011,
  author    = {Guido Ritter and Alwine Kraatz},
  title     = {Regulations and Requirements},
  booktitle = {Bart, Hans-J{\"o}rg / Pilz, Stephan (Hrsg.) Industrial Scale Natural Products Extraction},
  edition   = {1. Auflage},
  isbn      = {3-527-32504-2},
  year      = {2011},
}