found: Public-domain opera libretti and other vocal texts, 1995(Lyle Neff) link to vita (Lyle Kevin Neff; b. May 12, 1959, Ft. Benning, Ga.; Ph. D. cand. in Musicology, Univ. of Indiana)
found: RLIN, Sept. 18, 1996(hdg.: Neff, Lyle; usage: Lyle Neff)
found: Neff, L. Story, style, and structure in the operas of César Cui, 2002:v. 1 t.p. (Lyle K. Neff)
found: University of Delaware WWW site, October 8, 2014(Lyle Kevin Neff; supplemental faculty, Music Literature; library analyst at the University of Delaware's Morris Library; Doctor of Philosophy in Musicology, Indiana University; also a keyboardist and composer; born Ft. Benning, Georgia; resides in Newark, Delaware) - http://udel.edu/~lneff/vita.html