%0 Journal Article %A K. K. Kalnin'sh %A B. G. Belen'kii %T The dissociation of tetracyclines as investigated by means of infrared spectroscopy %J Doklady Akademii Nauk %D 1964 %P 619-621 %V 157 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_157_3_a29/ %G ru %F DAN_1964_157_3_a29