TY  - BOOK
AU  - Simson,Otto Georg von
TI  - Sacred fortress: Byzantine art and statecraft in Ravenna 
SN  - 0691040389 :
U1  - 723.20945 
PY  - 1987///
CY  - Princeton, N.J.
PB  - The University Press
KW  - Mosaics, Byzantine
KW  - Italy
KW  - Ravenna
KW  - Themes, motives
KW  - Mosaics
ER  -