@article{MicklerUhlemann1993,
  author    = {Mickler, Wulfhard and Uhlemann, Erhard},
  title     = {Liquid-Liquid-Extraction of copper from ammoniacal solution with cyclohexyl substituted ß-diketones},
  year      = {1993},
  language  = {en}
}
@article{MicklerUhlemann1993,
  author    = {Mickler, Wulfhard and Uhlemann, Erhard},
  title     = {Liquid-Liquid-Extraction of copper from ammoniacal solutions with 4-Acylpyrazolones},
  year      = {1993},
  language  = {en}
}