%0 Journal Article %A M. V. Boldin %T On the least absolute deviation estimator in a~nonstationary autoregression and testing for stationarity %J Teoriâ veroâtnostej i ee primeneniâ %D 1996 %P 409-417 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1996_41_2_a13/ %G ru %F TVP_1996_41_2_a13