Reference

Search for REF=[1737].

1737
De Smedt, J., Bauwens, M., Tytgat, R. and De Ley, J.
Intra- and intergeneric similarities of ribosomal ribonucleic acid cistrons of free-living, nitrogen-fixing bacteria.
Int. J. Syst. Bacteriol. 30: 106-122, 1980.
DOI: 10.1099/00207713-30-1-106.