Dawson, W., K. Yamamoto, K. Shimizu, and G. Kawai. “A New Entropy Model for RNA: Part II. Persistence-Related Entropic Contributions to RNA Secondary Structure Free Energy Calculations”. Journal of Nucleic Acids Investigation, vol. 4, no. 1, Mar. 2013, p. e2, doi:10.4081/jnai.2013.2651.