%0 Journal Article %A D. A. Tikhonov %A L. I. Kulikova %A A. V. Efimov %T Analysis of torsion angles between helical axes in pairs of helices in protein molecules %J Matematičeskaâ biologiâ i bioinformatika %D 2018 %P t17-t28 %V 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/MBB_2018_13_a1/ %G en %F MBB_2018_13_a1