TY  - BOOK
TI  - Tree-ring bulletin
PY  - 1990///
KW  - Byzantine Empire--Church history
KW  - Byzantine Empire--Civilization
KW  - Byzantine Empire--History--1081-1453
KW  - Byzantine Empire--Religion
KW  - Monasteries and state--Byzantine Empire
KW  - Monasticism and religious orders----History--To 1500
ER  -