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T.J.J. See. Researches on the Orbit of F.70 Ophiuchi, and on a Periodic Perturbation in the Motion of the System Arising from the Action of an Unseen Body. „Astronomical Journal”. 16, s. 17, 1896. DOI: 10.1086/102368. Bibcode: 1896AJ.....16...17S.
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Bruce Campbell, G. A. H. Walker, S. Yang. A search for substellar companions to solar-type stars. „Astrophysical Journal”. 331, s. 902–921, 1988-08-15. DOI: 10.1086/166608. Bibcode: 1988ApJ...331..902C. (ang.).
A.A.WolszczanA.A., D.A.D.A.FrailD.A.D.A., A planetary system around the millisecond pulsar PSR1257 + 12, styczeń 1992, DOI: 10.1038/355145a0, Bibcode: 1992Natur.355..145W. Brak numerów stron w książce