Sigman, D.M., M.A. Altabet, R. Michener, D.C. McCorkle, B. Fry, and R.M. Holmes. 1997. “Natural Abundance-Level Measurement of the Nitrogen Isotopic Composition of Oceanic Nitrate: An Adaptation of the Ammonia Diffusion Method”. Marine Chemistry 57: 227-42. doi:10.1016/S0304-4203(97)00009-1.
B. Fry
First name
B.
Last name
Fry