^Paul D، Skrzypek G، Fórizs I (2007). "Normalization of measured stable isotopic compositions to isotope reference scales - a review". Rapid Commun. Mass Spectrom. ج. 21 ع. 18: 3006–14. Bibcode:2007RCMS...21.3006P. DOI:10.1002/rcm.3185. PMID:17705258.
^Stellaard F، Elzinga H (2005). "Analytical techniques in biomedical stable isotope applications: (isotope ratio) mass spectrometry or infrared spectrometry?". Isotopes in Environmental and Health Studies. ج. 41 ع. 4: 345–61. DOI:10.1080/10256010500384333. PMID:16543190.
^Townsend, A.، المحرر (1995). Encyclopaedia of Analytical Science Encyclopaedia of Analytical Science. London: Academic Press Limited.
^Dickin, A.P. (2005). Radiogenic Isotope Geology. Cambridge University Press. مؤرشف من الأصل في 2014-03-27. اطلع عليه بتاريخ 2008-10-09.
