C. Yen

A class I ligase ribozyme with reduced Mg2+ dependence: Selection, sequence analysis, and identification of functional tertiary interactions.

N. Bergman, D. Bartel, D. Shechner, 2009, RNA.

Recognition of nucleoside triphosphates during RNA-catalyzed primer extension.

D. Bartel, M. E. Glasner, E. Ekland, 2000, Biochemistry.