Haney, P. J., Badger, J. H., Buldak, G. L., Reich, C. I., Woese, C. R., & Olsen, G. J. (1999). Thermal adaptation analyzed by comparison of protein sequences from mesophilic and extremely thermophilic Methanococcus species. The National Academy of Sciences.

Haney, Paul J., Jonathan H. Badger, Gerald L. Buldak, Claudia I. Reich, Carl R. Woese, and Gary J. Olsen. Thermal Adaptation Analyzed By Comparison of Protein Sequences From Mesophilic and Extremely Thermophilic Methanococcus Species. The National Academy of Sciences, 1999.

Haney, Paul J., et al. Thermal Adaptation Analyzed By Comparison of Protein Sequences From Mesophilic and Extremely Thermophilic Methanococcus Species. The National Academy of Sciences, 1999.