%0 Journal Article %A Czesław St/epniak %T Characterizing experimental designs by properties of the standard quadratic forms of observations %J Applicationes Mathematicae %D 2007 %P 39-45 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am34-1-4/ %R 10.4064/am34-1-4 %G en %F 10_4064_am34_1_4