@article{ChenStoeckleinSchelleretal.2003,
  author    = {Jian Chen and Walter F. M. St{\"o}cklein and Frieder W. Scheller and Ursula Wollenberger},
  title     = {Electrochemical determination of human hemoglobin by using ferrocene carboxylic acid modified carbon powder microelectrode},
  year      = {2003},
}