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Kölkenbeck, K., Zundel, G. The significance of the 2′ OH group and the influence of cations on the secondary structure of the RNA backbone. Biophys. Struct. Mechanism 1, 203–219 (1975). https://doi.org/10.1007/BF00535757
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DOI: https://doi.org/10.1007/BF00535757