authors Xu, Jianchu van Noordwijk, Meine He, Jun Kim, Kwang-Ju Jo, Ryong-Song Pak, Kon-Gyu Kye, Un-Hui Kim, Jong-Sik Kim, Kwon-Mu Sim, Yong-Nam Pak, Je-Un Song, Ki-Ung Jong, Yong-Song Kim, Kwang-Chol Pang, Chol-Jun Ho, Myong-Hyok
has subject area agriculture agroforestry aronia melanocarpa business christian ministry citizen journalism development land land restoration multiple cropping sloping land social dimension soviet union
