共 11 条
- [1] COMAR CL, 1948, NUCLEONICS, V3, P34
- [2] COMAR CL, 1948, NUCLEONICS, V3, P32
- [3] COMAR CL, 1948, NUCLEONICS, V3, P30
- [5] Kamen MD., 1947, RADIOACTIVE TRACERS
- [7] ROBBINS WR, 1946, SOIL SCI, V63, P3
- [9] STOUT PR, 1949, SOIL SCI SOC AM P, V12, P91