%A Gergely Regula %A Istv?n G?zse %A Alexandros Soumelidis %O #K?nyv Szerz? ismeretlen %T Position estimation using novel calibrated indoor positioning system %P 1142-1147 %E IEEE %D 2012 %C Seattle %R 10.1109/I2MTC.2012.6229376 %I IEEE %L sztaki7448