TY - JOUR AU - Pao, C. V. TI - Boundary-Value Problems of a Degenerate Sobolev-Type Differential Equation JO - Canadian mathematical bulletin PY - 1977 SP - 221 EP - 228 VL - 20 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1977-035-5/ DO - 10.4153/CMB-1977-035-5 ID - 10_4153_CMB_1977_035_5 ER -