%0 Journal Article %A V. Kh. Kravtsov %A V. N. Biyushkin %A T. I. Malinovskii %A S. A. D'yachenko %A M. I. Bureneva %T The crystal- and molecular structure of $5,7$-dimethyl-$4,6$-dioxopyrimido-$2,1,3$-thiadiazole %J Doklady Akademii Nauk %D 1988 %P 875-877 %V 301 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_301_4_a20/ %G ru %F DAN_1988_301_4_a20