Wegstein, J. H. The ly 39 latent fingerprint matcher computer science and technology / J. H. Wegstein and J. F. Rafferty - Washington, D.C. : U.S. Government Printing Office, 1978 - 15 p. ; 26 cm. - NBS special publication ; 500-36 . National bureau of standards Subjects--Topical Terms: Computer science Dewey Class. No.: 004