%0 Journal Article %A A. V. Topchiev %A V. N. Andronov %T Alkylation of benzene by ethylene in the presence of various phosphoric acids containing fluorine and boron fluoride %J Doklady Akademii Nauk %D 1957 %P 666-668 %V 112 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_112_4_a24/ %G ru %F DAN_1957_112_4_a24