%0 Journal Article %A Wimmer, Gejza %T Bad luck in quadratic improvement of the linear estimator in a special linear model %J Applications of Mathematics %D 1998 %P 1-7 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1023/A:1022290206923/ %R 10.1023/A:1022290206923 %G en %F 10_1023_A_1022290206923