AApsidal motion in binary starsApsidal motion in binary starsde Theodore E. SterneEdiciones (1)Apsidal motion in binary stars (1939)Astronomical Observatory of Harvard College · inglésMás obras de Theodore E. SterneAAn introduction to celestial mechanicsAn introduction to celestial mechanicsPProperties of the light curve of SS CygniProperties of the light curve of SS CygniCChanges of period in long-period variablesChanges of period in long-period variables