Affiliation: | Institute of Theoretical Physics, University of Warsaw, 00-681 Warsaw, Poland;Department of Astronomy, Williams College, Williamstown, MA 01267, USA;Theoretical Astrophysics Centre, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark;Keldysh Institute of Applied Math Russian Academy of Sciences, 125047 Moscow, Russia |