Terrain

Rendering Terrain using Chunked LOD Control

http://tulrich.com/geekstuff/sig-notes.pdf

Real-Time Continuous Level-of-Detail Terrain Rendering With Nested Splitting Space

http://www.people.fas.harvard.edu/~yzhu/doc/isef2k1-paper.pdf

Geometry Clipmaps: Terrain Rendering Using Nested Regular Grids

http://research.microsoft.com/en-us/um/people/hoppe/geomclipmap.pdf

Terrain Tessellation

http://developer.download.nvidia.com/assets/gamedev/files/sdk/11/TerrainTessellation_WhitePaper.pdf