| Affiliation: | Institute of Astronomy &Astrophysics, National Observatory of Athens, I. Metaxa &V. Pavlou, Palaia Penteli, 15236 Athens, Greece;Kapteyn Astronomical Institute, University of Groningen, the Netherlands;Instituto Nacional de Astrofisica, Optica y Electronica (INAOE) Apartado Postal 51 y 216, 72000, Puebla, Pue., Mexico;Grupo de Astrofísica, Universidad Autónoma de Madrid, Madrid E-28049, Spain;Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany;Keldysh Institute for Applied Mathematics, Miusskaja Ploscad 4, 125047 Moscow, Russia |
