TY - JOUR AU - A. Ya. Helemskii TI - Nonmatricial Version of the Arveson--Wittstock Extension Principle, and Its Generalization JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 2008 SP - 63 EP - 70 VL - 42 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_2008_42_3_a5/ LA - ru ID - FAA_2008_42_3_a5 ER -