Evaluation der Pflegedokumentation. - J. Schepers; M. Reinhart; M. Roes; S. Kern; H. Francois-Kettner (GMDS, 1994)

Remote estimation of nitrogen and chlorophyll contents in maize at leaf and canopy levels. - M. Schlemmer; Anatoly A. Gitelson; J. Schepers; Richard B. Ferguson; Y. Peng; John F. Shanahan; Donald Rundquist (Int. J. Appl. Earth Obs. Geoinformation, 2013)