Lerman, Y. V., Kennedy, S. D., Shankar, N., Parisien, M., Major, F., & Turner, D. H. (2011). NMR structure of a 4 × 4 nucleotide RNA internal loop from an R2 retrotransposon: Identification of a three purine–purine sheared pair motif and comparison to MC-SYM predictions. Cold Spring Harbor Laboratory Press.

Lerman, Yelena V., Scott D. Kennedy, Neelaabh Shankar, Marc Parisien, Francois Major, and Douglas H. Turner. NMR Structure of a 4 × 4 Nucleotide RNA Internal Loop From an R2 Retrotransposon: Identification of a Three Purine–purine Sheared Pair Motif and Comparison to MC-SYM Predictions. Cold Spring Harbor Laboratory Press, 2011.

Lerman, Yelena V., et al. NMR Structure of a 4 × 4 Nucleotide RNA Internal Loop From an R2 Retrotransposon: Identification of a Three Purine–purine Sheared Pair Motif and Comparison to MC-SYM Predictions. Cold Spring Harbor Laboratory Press, 2011.