The method of pitch frequency detection on the base of tuning to its harmonics. - Valentin V. Sercov; Alexander A. Petrovsky (EUSIPCO, 1998)

An improved speech model with allowance for time-varying pitch harmonic amplitudes and frequencies in low bit-rate MBE coders. - Valentin V. Sercov; Alexander A. Petrovsky (EUROSPEECH, 1999)