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| 1997 | ||
|---|---|---|
| 2 | EE | Hans Werner Kohl: First-hit speed up in ray tracing surfaces of functions of two variables. Computers & Graphics 21(6): 825-839 (1997) |
| 1996 | ||
| 1 | EE | Hans Werner Kohl: Hidden-curve algorithm for correct grid surface representation of functions of two variables. Computers & Graphics 20(2): 243-261 (1996) |