keine Angaben zu Lebensdaten, Dr.; Internat. Service for National Agricultural Research; the Netherlands (2000); Dep. of Agric. Economics; The Hebrew Univ. of Jerusalem (1987)
keine Angaben zu Lebensdaten, Assoc. Prof.; tätig am Dep. of Agricultural and Applied Economics; Virginia Polytechnic Inst. and State Univ.; Blacksburg; USA; Tätig am Internat. Service for National Agricultural Research; Namibia; Tätig an der Cornell Univ.; Ithaca; NY