A new ultrasensitive method for the determination of proteolytic activity.

@article{Rinderknecht1968ANU,
  title={A new ultrasensitive method for the determination of proteolytic activity.},
  author={Heinrich Rinderknecht and Michael C Geokas and Paul Silverman and Bernard J. Haverback},
  journal={Clinica chimica acta; international journal of clinical chemistry},
  year={1968},
  volume={21 2},
  pages={197-203}
}