The following publications are possibly variants of this publication:
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- Exploring large virtual environments with an HMD when physical space is limitedBetsy Williams, Gayathri Narasimham, Björn Rump, Timothy P. McNamara, Thomas H. Carr, John J. Rieser, Bobby Bodenheimer. apgv 2007: 41-48 [doi]
- Walking on foot to explore a virtual environment with uneven terrainMatthew Jackoski, William Kalescky, Joshua Ladd, William Cobb, Betsy Williams. vrst 2015: 13-16 [doi]
- Walking on foot to explore a virtual environment with uneven terrainMatthew Jackoski, William Kalescky, Joshua Ladd, William Cobb, Betsy Williams. apgv 2015: 139 [doi]
- Egocentric distance perception in HMD-based virtual environmentsQiufeng Lin, Xianshi Xie, Aysu Erdemir, Gayathri Narasimham, Timothy P. McNamara, John J. Rieser, Bobby Bodenheimer. apgv 2011: 123 [doi]