TY - JOUR AU - S. I. Mitrokhin TI - Spectral properties of a~fourth-order differential operator with integrable coefficients JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2010 SP - 188 EP - 197 VL - 270 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2010_270_a13/ LA - ru ID - TM_2010_270_a13 ER -