@article{HorningVandenHeuvelCreech2008,
  author    = {Evan Charles Horning and W. J. A. Vanden Heuvel and B. G. Creech},
  title     = {Separation and determinations of steroids by gas chromatography},
  journal   = {Methods of biochemical analysis},
  volume    = {11},
  pages     = {69 -- 147},
  year      = {2008},
}