TY  - JOUR
AU  - Krall, Allan M.
TI  - Semibounded Extensions of Singular Ordinary Differential Operators
JO  - Canadian mathematical bulletin
PY  - 1988
SP  - 432
EP  - 438
VL  - 31
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-063-x/
DO  - 10.4153/CMB-1988-063-x
ID  - 10_4153_CMB_1988_063_x
ER  -