étoile polaire
1978 / Fundamental Astrometry and the Definition of the Pole / C. A. Murray / Quarterly Journal of the Royal Astronomical Society 19 (1978) p. 187 [lien]
1979 / Flamsteed's Alleged Measurement of Annual Parallax for the Pole Star / M. E. W. Williams / Journal for the History of Astronomy 10 (1979) p. 102 [lien]