TY  - BOOK
AU  - Gripenberg G
AU  -  Londen S O
AU  -  Staffans O
TI  - Volterra integral and functional equations
T2  - Encyclopedia of mathematics and its applications; 34
U1  - B335, N0 
PY  - 1990///
CY  - Cambridge
PB  - Cambridge University Press       
KW  - Integral equations
ER  -