Binnendijk, Leendert. "I. Astrometry".
Properties of Double Stars: A Survey of Parallaxes and Orbits, Philadelphia: University of Pennsylvania Press, 1960, pp. 17-57.
https://doi.org/10.9783/9781512800364-004
Binnendijk, L. (1960). I. Astrometry. In
Properties of Double Stars: A Survey of Parallaxes and Orbits (pp. 17-57). Philadelphia: University of Pennsylvania Press.
https://doi.org/10.9783/9781512800364-004
Binnendijk, Leendert. "I. Astrometry" In
Properties of Double Stars: A Survey of Parallaxes and Orbits, 17-57. Philadelphia: University of Pennsylvania Press, 1960.
https://doi.org/10.9783/9781512800364-004
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