Experiments with a high quality, low complexity 4800 bps residual excited LPC (RELP) vocoder. - Bruce Fette; Wilburn Clark; Cynthia Jaskie; Michelle Tugenberg; William Yip (ICASSP, 1988)

CipherVOX: scalable low-complexity speaker verification. - Bruce Fette; Charles C. Broun; William M. Campbell; Cynthia Jaskie (ICASSP, 2000)