TY  - JOUR
AU  - E. Ch. Titchmarsh
TI  - Eigenfunction expansions associated with partial differential equations (III)
JO  - Matematika
PY  - 1957
SP  - 61
EP  - 78
VL  - 1
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1957_1_2_a3/
LA  - ru
ID  - MAT_1957_1_2_a3
ER  -