Hidden data transmission in mixed excitation linear prediction coded speech using quantisation index modulation. - A. Utku Yargiçoglu; Hakki Gökhan Ilk (IET Inf. Secur., 2010)

Speech coder identification using false nearest neighbor fractions. - A. Utku Yargiçoglu; Hakki Gökhan Ilk (SIU, 2012)