Kamphuis, I.G., Drenth, J. and Baker, E.N. (1985). „Thiol proteases. Comparative studies based on the high-resolution structures of papain and actinidin, and on amino acid sequence information for cathepsins B and H, and stem bromelain”. J. Mol. Biol. 182: 317—329. PMID3889350.CS1 одржавање: Вишеструка имена: списак аутора (веза)