TY - BOOK ID - 145845785 TI - Principles of astrometry : with special emphasis on long-focus photographic astrometry PY - 1967 PB - New York, NY : W. H. Freeman, DB - UniCat KW - ASTROMETRY UR - https://www.unicat.be/uniCat?func=search&query=sysid:145845785 AB - ER -