Visual Warren Jr W HWhang S 1987
guidance Warren WHVisual SWhang1987
Warren William H
Big Foot: Using the Size of a Virtual Foot to Scale Gap Width
Can I Pass?: Using Affordances to Measure Perceived Size in Virtual Environments
Evaluating the Accuracy of Size Perception in Real and Virtual Environments
Judging action capabilities in augmented reality
Affordance Judgments in HMD-Based Virtual Environments: Stepping over a Pole and Stepping off a Ledge