%0 Journal Article %A R. M. Aminova %A A. V. Aganov %A E. R. Martynchuk %T Evolution of nuclear magnetic shielding theory: from molecule in the gas phase to large molecular systems %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 2012 %P 5-22 %V 154 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZKU_2012_154_1_a0/ %G ru %F UZKU_2012_154_1_a0