by Valimaki, V., Lehtonen, Heidi-Maria, Takanen, M.
Published in IEEE transactions on audio, speech, and language processing (01.07.2013)

by Raitio, T., Takanen, M., Santala, O., Suni, A., Vainio, M., Alku, P.
Published in 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01.03.2012)