TY  - JOUR
AU  - A. M. Molchanov
TI  - On conditions for discreteness of the spectrum of self-adjoint differential equations of the second order
JO  - Trudy Moskovskogo matematičeskogo obŝestva
PY  - 1953
SP  - 169
EP  - 199
VL  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MMO_1953_2_a2/
LA  - ru
ID  - MMO_1953_2_a2
ER  -