%0 Journal Article %A Pao, C. V. %T Boundary-Value Problems of a Degenerate Sobolev-Type Differential Equation %J Canadian mathematical bulletin %D 1977 %P 221-228 %V 20 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1977-035-5/ %R 10.4153/CMB-1977-035-5 %F 10_4153_CMB_1977_035_5