Home page. Civil Aviation Authority. Retrieved on 25 February 2012. "Postal and visitor's address: Civil Aviation Authority Czech Republic Václav Havel Airport Prague 160 08 Praha 6"
"ContactArchived 20 February 2012 at the Wayback Machine." Smart Wings. Retrieved on 19 February 2012. "Office at Prague airport K letisti 1068/30 160 08 Praha 6 Czech Republic"
"ContactArchived 20 February 2012 at the Wayback Machine." Smart Wings. Retrieved on 19 February 2012. "Office at Prague airport K letisti 1068/30 160 08 Praha 6 Czech Republic"