Urick, T., I-Chang, C., Arena, E., Xu, W., Bessman, M. J., & Ruffolo, C. G. (2005). The pnhA Gene of Pasteurella multocida Encodes a Dinucleoside Oligophosphate Pyrophosphatase Member of the Nudix Hydrolase Superfamily. American Society for Microbiology.

Urick, Tonia, Chien I-Chang, Ellen Arena, WenLian Xu, Maurice J. Bessman, και Carmel G. Ruffolo. The PnhA Gene of Pasteurella Multocida Encodes a Dinucleoside Oligophosphate Pyrophosphatase Member of the Nudix Hydrolase Superfamily. American Society for Microbiology, 2005.

Urick, Tonia, et al. The PnhA Gene of Pasteurella Multocida Encodes a Dinucleoside Oligophosphate Pyrophosphatase Member of the Nudix Hydrolase Superfamily. American Society for Microbiology, 2005.