Authors: YANG C PETERSON CL SHROPSHIRE GJ OTAWA T

Citation: C. Yang et al., SPATIAL VARIABILITY OF FIELD TOPOGRAPHY AND WHEAT YIELD IN THE PALOUSE REGION OF THE PACIFIC-NORTHWEST, Transactions of the ASAE, 41(1), 1998, pp. 17-27

Authors: YANG C SHROPSHIRE GJ PETERSON CL

Citation: C. Yang et al., MEASUREMENT OF GROUND SLOPE AND ASPECT USING 2 INCLINOMETERS AND GPS, Transactions of the ASAE, 40(6), 1997, pp. 1769-1776

Authors: SHROPSHIRE GJ DESHAZER JA

Citation: Gj. Shropshire et Ja. Deshazer, OPTICAL SENSORS AID AGRICULTURE, Laser focus, 29(5), 1993, pp. 79