@article{KuschKnupp2003,
  author    = {Peter Kusch and Gerd Knupp},
  title     = {Simultaneous determination of caffeine in cola drinks and other beverages by reversed-phase HPTLC and reversed-phase HPLC},
  series   = {Chemical Educator},
  volume    = {8},
  number    = {3},
  issn      = {1430-4171},
  pages     = {201 -- 205},
  year      = {2003},
  language  = {en}
}