共 23 条
[1]
AKKEN R, 1938, AM J SCI, V36, P95
[4]
THE SPECIFIC ALPHA-ACTIVITIES AND HALF-LIVES OF U-234, U-235 AND U-236
[J].
PHYSICAL REVIEW,
1952, 88 (03)
:642-652
[5]
GEVERS TW, 1937, UNION S AFRICA GEOL, V31
[6]
HECHT F, 1937, 53 COMM MEAS GEOL TI
[8]
HOLMES A, 1949, GEOL MAG, V86, P288
[9]
Holmes A., 1955, P GEOL ASSOC CAN, V7, P81
[10]
Holmes A., 1955, COLONIAL GEOLOGY MIN, V5, P3