Richards, R. J., Wu, H., Trantirek, L., O'Connor, C. M., Collins, K., & Feigon, J. (2006). Structural study of elements of Tetrahymena telomerase RNA stem–loop IV domain important for function. Cold Spring Harbor Laboratory Press.

Richards, Rebecca J., Haihong Wu, Lukas Trantirek, Catherine M. O'Connor, Kathleen Collins, và Juli Feigon. Structural Study of Elements of Tetrahymena Telomerase RNA Stem–loop IV Domain Important for Function. Cold Spring Harbor Laboratory Press, 2006.

Richards, Rebecca J., et al. Structural Study of Elements of Tetrahymena Telomerase RNA Stem–loop IV Domain Important for Function. Cold Spring Harbor Laboratory Press, 2006.