@ARTICLE{Fujimoto_K._Estimation_2012, author={Fujimoto, K. and Kasprzak, W. and Hamada, N.}, volume={60}, number={No 1}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={71-81}, howpublished={online}, year={2012}, title={Estimation and tracking of fundamental, 2nd and 3d harmonic frequencies for spectrogram normalization in speech recognition}, URL={http://www.czasopisma.pan.pl/Content/83479/PDF/11_paper.pdf}, doi={10.2478/v10175-012-0011-z}, }