BAREN, Ian (1994): Expedition China Part II of III. 1991-92 CRF/NSS - Guizhou Nornal University Expedition.-
National Speleological Society News vol.52 nr.11 / Nov 1994: 322-336 (map. photos. surveys).
The expedition mapped 12.5 kilometers of passage in 13 caves. The more spectacular finds were Hei Dong, Long Qi Dong and Chui Feng Dong. (RM). Source : BBS