共 15 条
- [2] Cannon F. C., 1980, Methods for evaluating biological nitrogen fixation., P367
- [4] OVERLAPPING SEQUENCES OF KLEBSIELLA-PNEUMONIAE-NIF DNA CLONED AND CHARACTERIZED [J]. MOLECULAR & GENERAL GENETICS, 1979, 174 (01): : 59 - 66
- [5] CANNON FC, 1978, GENETIC ENG, P181
- [9] KENNEDY C, 1981, CURRENT PERSPECTIVES, P146