Nicolas Tsingos Ingrid Carlbom Gary Elko Robert Kubli Thomas A. Funkhouser Validating Acoustical Simulations in Bell Labs Box. 28-37 2002 22 IEEE Computer Graphics and Applications 4 http://computer.org/cga/cg2002/g4028abs.htm db/journals/cga/cga22.html#TsingosCEKF02