TY  - BOOK
AU  - Langer Helmut Ed.
ED  - Symposium on biochemistry and physiology of visual pigments (1972 : Germany)
TI  - Proceeding on biochemistry and physiology of visual pigments
U1  - L185-875:E7p1:N72, L3 
PY  - 1973///
KW  - Human eye
ER  -