共 22 条
[1]
Broughton PL, 1971, EARTH SCI J, V5, P36
[2]
Curl R. L., 1962, B NATL SPELEOLOGICAL, V24, P57
[3]
DAVIES WE, 1957, B NATION SPELEOLOG S, V19, P24
[5]
GEZE B, 1956, PARIS ACAD SCI COMPT, V252, P144
[6]
Hoeg OA, 1946, NYTT MAG NATURVIDENS, V85, P99
[8]
HOSTETLER PB, 1964, 64 INT ASS SCI HYDR, P34
[9]
LIPPMANN F, 1960, FORTSCHR MINERAL, V38, P156
[10]
Moore G.W., 1964, SPELEOLOGY STUDY CAV