@misc{indiciae609941d697d0, title = {New approaches to virtual environment surgery}, author = {Ross, M. D. and Twombly, A. and Lee, A. W. and Cheng, R. and Senger, S.}, year = {1999}, url = {https://ntrs.nasa.gov/citations/20040141788}, note = {Source identifier: 20040141788} }