TY  - RPRT
TI  - Progress in comparative genetics of nitrogen fixation.
AU  - R Robson
AU  - C Kennedy
AU  - J Postgate
PY  - 1983
DO  - 10.1139/m83-152
UR  - https://pubmed.ncbi.nlm.nih.gov/6360317/
ID  - 6360317
ER  -