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Martin، Jan M. L (12 أكتوبر 2006). "Heats of formation of perchloric acid, HClO4, and perchloric anhydride, Cl2O7. Probing the limits of W1 and W2 theory". Journal of Molecular Structure: THEOCHEM. Modelling Structure and Reactivity: the 7th triennial conference of the World Association of Theoritical and Computational Chemists (WATOC 2005). ج. 771 ع. 1: 19–26. arXiv:physics/0508076. DOI:10.1016/j.theochem.2006.03.035. ISSN:0166-1280.
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Martin، Jan M. L (12 أكتوبر 2006). "Heats of formation of perchloric acid, HClO4, and perchloric anhydride, Cl2O7. Probing the limits of W1 and W2 theory". Journal of Molecular Structure: THEOCHEM. Modelling Structure and Reactivity: the 7th triennial conference of the World Association of Theoritical and Computational Chemists (WATOC 2005). ج. 771 ع. 1: 19–26. arXiv:physics/0508076. DOI:10.1016/j.theochem.2006.03.035. ISSN:0166-1280.