article{audio_dsp06,
  author    = {
	       Hamza Özer and
               Bülent Sankur and
               Nasir Memon and
               Ismail Avcibas},
  title     = {Detection of audio covert channels using statistical footprints of hidden messages},
  journal   = {Digital Signal Processing},
  volume    = {16},
  pages     = {389-401},
  year      = {2006},
}