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1957JO.....40...93W - J. Obs., 40, 93 (1957)
Photovisual differences in magnitudes of 331 mainly southern double stars estimated by steps on 505 plates from the Bosscha Observatory, taken 1949.7 - 1952.4.
WIETH-KNUDSEN N.
Journal keyword(s):
Simbad objects: 276
