1. Seegers WH, Landaburu RH: Am J Physiol 191:167–174 (1957)
2. Gaffney PJ, Lord K, Brasher M, Kirkwood TBL: Thromb Res 10:549–556 (1977)
3. Troll W, Sherry S, Wachman J: J Biol Chem 208:85–95 (1954)
4. Gaffney PJ: In Chromogenic Peptide Substrates; Chemistry and Clinical Usage. Scully MF, Kakkar VV (eds). Churchill Livingstone, London, 1979, pp 42–49.
5. Blow DM, Janin J, Ghothia C: Nature 249:54–55 (1974)