Bray, J. R.; Sanger, J. E. 1961. Light reflectivity as an index of chlorophyll content and production potential of various kinds of vegetation. Proceedings of the Minnesota Academy of Science 29:222-226.    [1251  Abstract  CC]

Gorham, E.; Sanger, J. 1964. Chlorophyll derivatives in woodland, swamp, and pond soils of Cedar Creek Natural History Area, Minnesota, U.S.A. Pages 1-12 in Y. Miyake and T. Koyama, editor. Recent Researches in the Fields of Hydrosphere, Atmosphere and Nuclear Geochemistry. Maruzen Co. Ltd., Tokyo, Japan.    [1304  Abstract  CC]

Bray, J. R.; Sanger, J. E.; Archer, A. L. 1966. The visible albedo of surfaces in central Minnesota. Ecology 47(4):524-531.    [1253  Abstract  CC]

Gorham, E.; Sanger, J. 1967. Caloric values of organic matter in woodland, swamp, and lake soils. Ecology 48(3):492-494.    [1305  Abstract  CC]

Gorham, E.; Sanger, J. 1967. Plant pigments in woodland soils. Ecology 48(2):306-308.    [1306  Abstract  CC]

Sanger, J. E. 1968. A Quantitative Study of Leaf Pigments from Initiation in Buds to Decomposition in Soils. Ph.D. Thesis. University of Minnesota.   [1492  CC]

Sanger, J. E.; Gorham, E. 1970. The diversity of pigments in lake sediments and its ecological significance. Limnology and Oceanography 15(1):59-69.    [1495  Abstract  CC]

Sanger, J. E. 1971. Identification and quantitative measurements of plant pigments in soil humus layers. Ecology 52(6):959-963.    [1493  Abstract  CC]

Sanger, J. E. 1971. Quantitative investigations of leaf pigments from their inception in buds through autumn coloration to decomposition in falling leaves. Ecology 52(6):1075-1089.    [1494  Abstract  CC]

Sanger, J. E.; Gorham, E. 1973. A comparison of the abundance and diversity of fossil pigments in wetland peats and woodland humus layers. Ecology 54(3):605-611.    [1496  Abstract  CC]