TY  - BOOK
AU  - Krasnoselskii, M.A.
AU  - Ratickii, Y.B.
AU  - Boron, L.F., tr.
TI  - Convex functions and optical spaces
U1  - 515.73 
PY  - 1961///
CY  - Netherlands
PB  - P.Nordhoff Limited
ER  -