Edit. BCKCA Belgian Chinese Karst and Caves Association and Academia sinica, ( without year): 51 pagg., surveys, phot.The results of the exploration of 4 areas (Xundian, Xuanwei, Mile, Yiliang) and some isolated caves are presented. Approx. 22 km of cave passages were explored and 19 km mapped. Description and survey of: Gan He dong river cave 1,9 km; Lo Shue dong 1,2 km; Tiansheng Qiao dong 1,9 km/-273 m; Da Ping dong 1,09 km/-306 m; Da Kuo dong 1,05 km/-67 m; Ying Cui Shan 1,15 km/-65 m; and other caves <1 km. (RB).
Professional Paper (Service Géologique de Belgique), 1991/4, no248 (RV)