共 5 条
[1]
BUTLER BS, 1929, 144 US GEOL SURV PRO
[2]
CORNWALL HR, 1954, GQ51 US GEOL SURV GE
[3]
FAURE G, 1964, 12 ANN PROGR REPT, P255
[4]
SILVER LT, 1963, AM GEOPHYS UNION T, V44, P107
[5]
WRIGHT FE, 1908, 1908 MICH GEOL SURV, P361