Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2018_4_a10, author = {A. A. Leonovich}, title = {{\CYRF}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyra}+{\cyrg}{\cyre}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyri}{\cyrya}}, journal = {Kvant}, pages = {32--33}, publisher = {mathdoc}, number = {4}, year = {2018}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2018_4_a10/} }
A. A. Leonovich. Физика+география. Kvant, no. 4 (2018), pp. 32-33. http://geodesic.mathdoc.fr/item/KVANT_2018_4_a10/