. "UK" . "Nucleic Acids Res." . "NARHAD" . "0389" . "0305-1048" . "20" . "6637" . "6647" . "Crystal and Molecular Structure of the Alternating Dodecamer d(GCGTACGTACGC) in the A-DNA Form: Comparison with the Isomorphous Non-Alternating Dodecamer d(CCGTACGTACGG)" . . . . .