turbulence in czech turbulence in german turbulence in danish turbulence in spanish turbulence in french turbulence in italian turbulence in norwegian turbulence in russian turbulence in albanian turbulence in bulgarian turbulence in belarusian turbulence in estonian turbulence in finnish turbulence in greek turbulence in croatian turbulence in hungarian turbulence in portuguese turbulence in polish turbulence in swedish turbulence in slovak