Tomoyuki Kobayashi Yoshinari Kameda Yuichi Ohta Sound Source Localization with Non-calibrated Microphones. 134-143 2008 conf/mmm/2008 MMM http://dx.doi.org/10.1007/978-3-540-77409-9_13 db/conf/mmm/mmm2008.html#KobayashiKO08