| [CDF+06] Cole F. et al. |
| [DFR+04] DeCarlo D. et al. |
| [KMM+02] Kalnins R. et al. |
| [KSF+02] Klein A. et al. |
| [KGF+02] Klein A. et al. |
| [WPF+02] Webb M. et al. |
| [PHW+01] Praun E. et al. |
| [WFH+97] Wood D. et al. |
| [Fin96] Finkelstein A. |
| [FS+94] Finkelstein A. et al. |