WALRAVEN, Karel (1989) : China 1988. -
Speleo Nederland Pierk 1/89 : 8-12. (Dutch; Engl. summ.)
About an international expedition in the province Guizhou; survey of Feilong Dong. (RB)
Source : BBS
GUNN, J. (1989) : International expedition on the development and protection of cave resources - South-West Guizhou (China). -
Caves & Caving, 43 : 33-35 (6 fig., 1 tab.)
Visit of 17 caves, 4 of them were surveyed (2 caves longer than 1,1 km). (AW)
Source : BBS