<ul><li><a href=https://www.finlex.fi/fi/laki/ajantasa/2017/20170320 target=_blank>Transport Services Act(Laki liikenteen palveluista (320/2017), adopted 01.07.2018, last amended 01.02.2022)</a></li><li><a href=https://www.traficom.fi/en/transport/aviation/traffic-rights-and-operating-permits target=_blank>Finnish Transport and Communications Agency (Traficom) instructions for air transport operating permits(Finnish Transport and Communications Agency (Traficom), Traffic rights and operating permits, consulted on 14 April 2022)</a></li></ul>