%0 Journal Article %A N. V. Timofeeva %T The homology groups of the variety of complete pairs $X_{13}$ of zero-dimensional subschemes of lengths 1 and 3 of projective space %J Sbornik. Mathematics %D 2000 %P 1693-1705 %V 191 %N 11 %U http://geodesic.mathdoc.fr/item/SM_2000_191_11_a4/ %G en %F SM_2000_191_11_a4