Photography
https://500px.com/aleksandarcikota
About asteroid (187700) Zagreb
Orbit information: http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=187700+Zagreb#conten
Press release (April 13, 2009): [PRESS_187700_Zagreb] (Croatian)
Useful or interesting links
European Southern Observatory
Space Telescope Science Institute
STScI Webcasts
Minor Planet Center
Observatrorio Astronomico de La Sagra
Jet Propulsion Laboratory
SAO/NASA Astrophysics Data System (ADS)
arXiv.org e-Print archive
Astropython