1. Bidirectional spectral reflectance of grass canopies for determination of above ground standing biomass;Colwell,1973
2. Effect of angles on reflectivity;Egbert;Photog. Eng. V.,1972
3. Lawrence Fox, (1973), Personal communication, University of Michigan.
4. Reflectance, transmittance and absorptance of light of leaves for 11 plant genera with different leaf mesophyll arrangements;Gausman,1970
5. Remote sensing in soil and water conservation research;Myers,1966