TY  - GEN
AU  - Coddington,Earl A
TI  - Extension theory of formally normal and symmetric subspaces
T2  - Memoirs of the American Mathematical Society, no. 134
SN  - 0821818341
U1  - 510/.8 s515/.72 
PY  - 1973///
CY  - Providence
PB  - American Mathematical Society
KW  - Linear operators
KW  - Differential operators
KW  - Hilbert space
ER  -