1. Delineation of mineral deposits in subaerial volcanic rocks;Busby,1986
2. Harris, D. P., and Pan, G., 1987, An investigation of quantification methods and multivariate relations designed explicitly to support the estimation of mineral resources-intrinsic samples: Report on research sponsored by U.S. Geological Survey Grant #14–08-0001-G1399 (Sept. 1987), 200 p.
3. Discrimination of hydrothermally altered and unaltered rocks in visible and near-infrared multispectral images;Rowan;Geophysics,1977
4. Map of the Walker Lake 1° by 2° quadrangle, California and Nevada, showing the regional distribution of hydrothermally altered rocks;Rowan,1984