Kritee, K., D.M. Sigman, J. Granger, B.B. Ward, A. Jayakumar, and C. Deutsch. 2012. “Reduced Isotope Fractionation by Denitrification under Conditions Relevant to the Ocean”. Geochimica Et Cosmochimica Acta 92: 243-59. doi:10.1016/j.gca.2012.05.020.

Karsh, K.L., J. Granger, K. Kritee, and D.M. Sigman. 2012. “Eukaryotic Assimilatory Nitrate Reductase Fractionates N and O Isotopes With a Ratio Near Unity”. Environmental Science and Technology 46: 5727-35. doi:10.1021/es204593q.