%0 Journal Article %A S. I. Nikolenko %T Hard satisfiable formulas for DPLL-type algorithms %J Zapiski Nauchnykh Seminarov POMI %D 2002 %P 139-148 %V 293 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2002_293_a7/ %G ru %F ZNSL_2002_293_a7