Optimal Depth Buffer for Low-Cost Graphics Hardware. - Eugene Lapidous; Guofang Jiao (Workshop on Graphics Hardware, 1999)

Quasi-linear Z buffer. - Eugene Lapidous; Guofang Jiao (SIGGRAPH Abstracts and Applications, 1999)

Quasi-Linear Depth Buffers With Variable Resolution. - Eugene Lapidous; Guofang Jiao; Jianbo Zhang; Timothy Wilson (Workshop on Graphics Hardware, 2001)