Measuring N-15-NH4+ in marine, estuarine and fresh waters: An adaptation of the ammonia diffusion method for samples with low ammonium concentrations Article
Holmes, RM, McClelland, JW, Sigman, DM et al. (1998). Measuring N-15-NH4+ in marine, estuarine and fresh waters: An adaptation of the ammonia diffusion method for samples with low ammonium concentrations
. MARINE CHEMISTRY, 60(3-4), 10.1016/S0304-4203(97)00099-6