Citations:eyewitnessed


 * 2010 Gisella Clementini, "RR Lyrae Stars in Dwarf Spheroidal Galaxies" arXiv
 * With ages comparable to the age of the Universe, the variable stars of RR Lyrae type have eyewitnessed the formation of their host galaxies, and thus can provide information on the processes that led to the assembling of large galaxies such as the Milky Way and the Andromeda galaxy.