Atticus Hemisphäre Hahn georgantopoulos ioannis Bot Braun Pünktlichkeit
Compton-thick AGN in the CDFN I. Georgantopoulos NOA A. Akylas NOA A. Georgakakis NOA M. Rovilos MPE M. Rowan-Robinson Imperial College. - ppt download
Ioannis Georgantopoulos | IAU
Ioannis Georgantopoulos – AHEAD2020
The galaxy luminosity function & its evolution probed with Chandra - [PPT Powerpoint]