PASCAL International Observatory Site Digest for 22/06/17
A PASCAL Observatory témakereső hírlevele:
http://us2.campaign-archive1.com/?e=98989c0020&u=ea43bac87ac57ae423e8456e7&id=3e11f30a3a
A PASCAL Observatory témakereső hírlevele:
http://us2.campaign-archive1.com/?e=98989c0020&u=ea43bac87ac57ae423e8456e7&id=3e11f30a3a