%0 Journal Article %A N. G. Makarov %T Sets of $1$-invariance and $1$-invariant subspaces (smooth functions) %J Doklady Akademii Nauk %D 1982 %P 1072-1075 %V 262 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_262_5_a10/ %G ru %F DAN_1982_262_5_a10