Sandler, S. J., Hugenholtz, P., Schleper, C., DeLong, E. F., Pace, N. R., & Clark, A. J. (1999). Diversity of radA Genes from Cultured and Uncultured Archaea: Comparative Analysis of Putative RadA Proteins and Their Use as a Phylogenetic Marker. American Society for Microbiology.

Sandler, Steven J., Philip Hugenholtz, Christa Schleper, Edward F. DeLong, Norman R. Pace, and Alvin J. Clark. Diversity of RadA Genes From Cultured and Uncultured Archaea: Comparative Analysis of Putative RadA Proteins and Their Use As a Phylogenetic Marker. American Society for Microbiology, 1999.

Sandler, Steven J., et al. Diversity of RadA Genes From Cultured and Uncultured Archaea: Comparative Analysis of Putative RadA Proteins and Their Use As a Phylogenetic Marker. American Society for Microbiology, 1999.