Liebig's concept of nutritional adequacy challenged (Hart et al., 1911).

@article{Harper1997LiebigsCO,
  title={Liebig's concept of nutritional adequacy challenged (Hart et al., 1911).},
  author={Alfred E. Harper},
  journal={The Journal of nutrition},
  year={1997},
  volume={127 5 Suppl},
  pages={1027S-1029S}
}