%0 Journal Article %A S. V. Polin %T Some algorithmic questions connected with the solution of the search problem without a clear criteria for checking the validity of a variant %J Trudy po diskretnoj matematike %D 2007 %P 239-268 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/TDM_2007_10_a12/ %G ru %F TDM_2007_10_a12