@article{StahlThurlZengetal.1994,
  author    = {Stahl, Bernd and Thurl, Stephan and Zeng, Jianru and Karas, Michael and Hillenkamp, Franz and Steup, Martin and Sawatzki, G{\"u}nther},
  title     = {Oligosaccharides from human milk as revealed by matrix-assisted laser desorption : ionization mass spectrometry},
  year      = {1994},
  language  = {en}
}
@article{StahlKlabundeWitzeletal.1994,
  author    = {Stahl, Bernd and Klabunde, Thomas and Witzel, Herbert and Krebs, Bernt and Steup, Martin and Karas, Michael and Hillenkamp, Franz},
  title     = {The oligosaccharides of the Fe(III)-Zn(II) purple acid phosphatase of the red kidney bean : determination of the structure by a combination of matrix-assisted laser desorption-ionization mass spectrometry and selective enzymic degradation},
  year      = {1994},
  language  = {en}
}