(en) George A. Olah, Richard H. Schlosberg, « Chemistry in super acids. I. Hydrogen exchange and polycondensation of methane and alkanes in FSO3H-SbF5 ("magic acid") solution. Protonation of alkanes and the intermediacy of CH5+ and related hydrocarbon ions. The high chemical reactivity of "paraffins" in ionic solution reactions », Journal of the American Chemical Society, vol. 90, no 10, , p. 2726-2727 (lire en ligne) DOI10.1021/ja01012a066
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(en) George A. Olah, Richard H. Schlosberg, « Chemistry in super acids. I. Hydrogen exchange and polycondensation of methane and alkanes in FSO3H-SbF5 ("magic acid") solution. Protonation of alkanes and the intermediacy of CH5+ and related hydrocarbon ions. The high chemical reactivity of "paraffins" in ionic solution reactions », Journal of the American Chemical Society, vol. 90, no 10, , p. 2726-2727 (lire en ligne) DOI10.1021/ja01012a066