Verlag Verlag Dr. KösterChang-Ju Huang-Tzeng × Study on the Organic Agriculture in Germany and its Implications for Taiwan Chang-Ju Huang-TzengVerlag Dr. KösterSoftcover1996 A contribution to government rice stock policy in TaiwanAn application of optimal control theoryChang-Ju Huang-TzengVerlag Dr. KösterSoftcover20,35 €