%0 Journal Article %A S. E. Kupriyanov %A A. A. Perov %T Cross-sections dissociation of $\mathrm{H}_2^+$ ions from methane and $n$-butane at different electron energies %J Doklady Akademii Nauk %D 1964 %P 942-944 %V 158 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_158_4_a44/ %G ru %F DAN_1964_158_4_a44