Bagby, S. C., Bergman, N. H., Shechner, D. M., Yen, C., & Bartel, D. P. (2009). A class I ligase ribozyme with reduced Mg(2+) dependence: Selection, sequence analysis, and identification of functional tertiary interactions. Cold Spring Harbor Laboratory Press.

Bagby, Sarah C., Nicholas H. Bergman, David M. Shechner, Catherine Yen, and David P. Bartel. A Class I Ligase Ribozyme With Reduced Mg(2+) Dependence: Selection, Sequence Analysis, and Identification of Functional Tertiary Interactions. Cold Spring Harbor Laboratory Press, 2009.

Bagby, Sarah C., et al. A Class I Ligase Ribozyme With Reduced Mg(2+) Dependence: Selection, Sequence Analysis, and Identification of Functional Tertiary Interactions. Cold Spring Harbor Laboratory Press, 2009.