Poldermans B. ea, 1980
Poldermans B., Bakker H., Van Knippenberg P.H. Studies on the function of two adjacent N6,N6-dimethyladenosines near the 3' end of 16S ribosomal RNA of Escherichia coli. IV. The effect of the methylgroups on ribosomal subunit interaction. // Nucl. Acids Res., 1980, 8, 143-151.