@article{MicklerReichUhlemann1998,
  author    = {Wulfhard Mickler and Annett Reich and Erhard Uhlemann},
  title     = {Extraction of iron (II) and iron (III) with 4-acylpyrazolones in comparision with long chain 1-phenyl-1,3- (cyclo)alkanediones},
  year      = {1998},
}