%0 Journal Article %A V. I. Berezin %T Vibration spectra and aromaticity of six-member azacycles %J Doklady Akademii Nauk %D 1964 %P 629-631 %V 155 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_155_3_a25/ %G ru %F DAN_1964_155_3_a25