Halley, D. J.; Minagawa, M.; Nieminen, M.; Gaare, E. Preservation in 70% Ethanol Solution Does Not Affect δ13C and δ15N Values of Reindeer Blood Samples – Relevance for Stable Isotope Studies of Diet. Ran 2008, 28 (1), 9-12. https://doi.org/10.7557/2.28.1.146.