An Introduction To The Study Of Eclipsing Variables Harvard Observatory Monograph N°6 Sommaire: Nature Of The Eclipses; Determination Of The Elements; Effects Of The Orbital Eccentricity ...
Astrometric Binaries - An International Conference To Commemorate The Birth Of Friedrich Wilhelm Bessel (1784-1846) (Reprinted From Astrophysics & Space Science, Vol. 110, N° 1 - 1985)