共 16 条
[7]
Grench H. A., 1972, Particles and Nuclei, V4, P143
[8]
DETERMINATION OF NATURAL RADIOACTIVITY IN RARE-EARTH MATERIALS
[J].
NUCLEAR INSTRUMENTS & METHODS,
1973, 112 (03)
:415-421
[9]
Lederer C. M., 1978, TABLE ISOTOPES
[10]
MARSOL C, 1972, CR ACAD SCI B PHYS, V274, P904