Murphy, John Oliver2017-12-122017-12-121968b1016215http://hdl.handle.net/1885/137754The study of non-linear oscillations of massive stars undertaken in this thesis has been orientated, in the first instance, towards determining the form of the radial velocity curve of a pulsating star, and later, to aspects pertaining to the vibrational stability of certain stellar models.1 venVariable starsStars Motion in line of sight196810.25911/5d6fa28e40abd2017-11-22