Sugiyama, T., Cam, H., Verdel, A., Moazed, D., & Grewal, S. I. S. (2005). RNA-dependent RNA polymerase is an essential component of a self-enforcing loop coupling heterochromatin assembly to siRNA production. National Academy of Sciences.

Sugiyama, Tomoyasu, Hugh Cam, André Verdel, Danesh Moazed, et Shiv I. S. Grewal. RNA-dependent RNA Polymerase Is an Essential Component of a Self-enforcing Loop Coupling Heterochromatin Assembly to SiRNA Production. National Academy of Sciences, 2005.

Sugiyama, Tomoyasu, et al. RNA-dependent RNA Polymerase Is an Essential Component of a Self-enforcing Loop Coupling Heterochromatin Assembly to SiRNA Production. National Academy of Sciences, 2005.