A Novel Haptic Interface for Navigation in Large Volume Environments. - Thomas A. Smith 001; A. L. Barrow; R. G. Barrow; William S. Harwin (WHC, 2007)

3D path planning with novel multiple 2D layered approach for complex human-robot interaction. - Thomas A. Smith 001; Rui C. V. Loureiro; William S. Harwin (CIRA, 2009)