TY - JOUR AU - Ya. T. Sultanaev AU - O. V. Myakinova TI - On the Deficiency Indices of a Singular Differential Operator of Fourth Order in the Space of Vector Functions JO - Matematičeskie zametki PY - 2009 SP - 950 EP - 953 VL - 86 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2009_86_6_a14/ LA - ru ID - MZM_2009_86_6_a14 ER -