%0 Journal Article %A V. G. Kirin %T Some remarks on the definition of subsequences %J Matematic̀Œki vesnik %D 1974 %P 143 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MV_1974_26_1_a20/ %F MV_1974_26_1_a20