TY  - BOOK
AU  - Heider,Lester J.
TI  - Theoretical analysis
U1  - 517 HEI  
PY  - 1967///.
CY  - Philadelphia : 
PB  - W. B. Saunders Company, 
KW  - Hilbert spaces
KW  - Mathematical analysis
KW  - Metrix space
ER  -