%0 Journal Article %A V. P. Platonov %T Ad\`ele groups and class numbers %J Informatics and Automation %D 1984 %P 205-214 %V 163 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1984_163_a32/ %G ru %F TRSPY_1984_163_a32