TY  - BOOK
AU  - Graf,Johannes
ED  - Deutsches Uhrenmuseum Furtwangen.
TI  - Modern times: timekeeping on its way to the present 
SN  - 3922673198
PY  - 2006///]
CY  - Furtwangen
PB  - Deutsches Uhrenmuseum
KW  - Clocks and watches
KW  - History
KW  - Time measurements
KW  - fast
KW  - Timekeeper (general)
KW  - Germany
KW  - Master slave timezones atomic quartz 20th century modern
KW  - Catalog electrical electronic
ER  -