@INPROCEEDINGS{91,
AUTHOR = "s",
TITLE = "Computational Geometry Methods in Acceleration of Ray-tracing",
BOOKTITLE = "Proc. of GEOBILD'91 Geometrical problems of image processing",
EDITOR = "Eckhardt U., Hubler A., Nagel W., Werner G.",
MONTH = "March",
PAGES = "114-119",
YEAR = "1991",
}