@article{DAN_1957_112_4_a24,
     author = {A. V. Topchiev and V. N. Andronov},
     title = {Alkylation of benzene by ethylene in the presence of various phosphoric acids containing fluorine and boron fluoride},
     journal = {Doklady Akademii Nauk},
     pages = {666--668},
     publisher = {mathdoc},
     volume = {112},
     number = {4},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_112_4_a24/}
}