Russell, R. A., Zeng, Y., Erlwein, O., Cullen, B. R., & McClure, M. O. (2001). The R Region Found in the Human Foamy Virus Long Terminal Repeat Is Critical for both Gag and Pol Protein Expression. American Society for Microbiology.

Russell, Rebecca A., Yan Zeng, Otto Erlwein, Bryan R. Cullen, a Myra O. McClure. The R Region Found in the Human Foamy Virus Long Terminal Repeat Is Critical for Both Gag and Pol Protein Expression. American Society for Microbiology, 2001.

Russell, Rebecca A., et al. The R Region Found in the Human Foamy Virus Long Terminal Repeat Is Critical for Both Gag and Pol Protein Expression. American Society for Microbiology, 2001.