002990000a2200121000450024500410000065000130004165000200005465000190007465100100009304100130010310000180011677300430013410aStudy and use of karst cave in China14aCavernas14aUso de cavernas14aEspeleología 4pChina0 aInglés1 aLin Hua, Song1 tStudy in Speleology3357q23-29d1989?