Horizon mapping: shadows for bump-mapped surfaces.

MLA

Max, Nelson. “Horizon Mapping: Shadows for Bump-Mapped Surfaces.” Visual Computer, vol. 4, no. 2, Mar. 1988, pp. 109–17. EBSCOhost, https://doi.org/10.1007/BF01905562.

APA

Max, N. (1988). Horizon mapping: shadows for bump-mapped surfaces. Visual Computer, 4(2), 109–117. https://doi.org/10.1007/BF01905562

Chicago

Max, Nelson. 1988. “Horizon Mapping: Shadows for Bump-Mapped Surfaces.” Visual Computer 4 (2): 109–17. doi:10.1007/BF01905562.