SERPENT - an information storage and analysis resource for protein sequences. - D. Akrigg; Terri K. Attwood; Alan J. Bleasby; John B. C. Findlay; A. C. North; N. A. Maughan; David J. Parry-Smith; D. N. Perkins; J. C. Wootton (Comput. Appl. Biosci., 1992)