%0 Journal Article %A E. F. Baulin %A T. V. Astakhova %A M. A. Roytberg %T Elements of RNA Secondary Structures and Their Classification %J Matematičeskaâ biologiâ i bioinformatika %D 2012 %P 567-571 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/MBB_2012_7_a6/ %G ru %F MBB_2012_7_a6