%0 Journal Article %A A. N. Dranishnikov %T Many-valued absolute retracts and absolute extensors in~dimensions~0 and~1 %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1984 %P 273-274 %V 39 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1984_39_5_a12/ %G en %F RM_1984_39_5_a12