TY  - BOOK
AU  - Dekker,E.
TI  - The Leiden sphere: an exceptional seventeenth-century planetarium 
T2  - Communications of the Museum Boerhaave
SN  - 9062920713
PY  - 1985///
CY  - Leiden
PB  - Museum Boerhaave
KW  - Planetariums
KW  - fast
KW  - History
KW  - Netherlands
KW  - Orrey planetarium
KW  - Catalog astronomical specific
KW  - Dekker Elly
KW  - Scientific instrument
N1  - Includes bibliographical references (back cover-leaf )
ER  -