共 15 条
[1]
ARCULUS RJ, 1975, PHASE RELATIONS SYST, P507
[5]
JACKSON ED, 1961, 358 US GEOL SURV PRO
[8]
OSBORN EF, 1978, CARNEGIE I WASH YB, V77, P784
[10]
SNETHLAGE R, 1977, TIME STRATA BOUND OR, P353