%0 Journal Article %A L. Gajek %T An improper Cramer-Rao lower bound %J Applicationes Mathematicae %D 1987 %P 241-256 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-2-241-256/ %R 10.4064/am-19-2-241-256 %G en %F 10_4064_am_19_2_241_256