Zisserman, A., Mundy, J., Forsyth, D., Liu, J., Pillow, N., Rothwell, C., & Utcke, S. (2002). Class-based grouping in perspective images. IEEE.

Zisserman, A., J. Mundy, D. Forsyth, J. Liu, N. Pillow, C. Rothwell, and S. Utcke. Class-based Grouping in Perspective Images. IEEE, 2002.

Zisserman, A., et al. Class-based Grouping in Perspective Images. IEEE, 2002.