TY - RPRT TI - An investigation of spectral change as influenced by irrigation and evapotranspiration volume estimation in western Nebraska AU - P. M. Seevers AU - F.C. Sadowski AU - D. T. Lauer PY - 1990 DO - 10.1007/bf00138371 UR - https://pubs.usgs.gov/publication/70016083 ID - 70016083 ER -