org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue English Northernlights in Maardu, Estonia Czech polární záře v Maardu, Estonsko German Nordlichter
Convention centre, Darwin, Northern Territory, Australia (2019) German Darwin Waterfront und Convention centre, Darwin, Northern Territory, Australien (2019)
Commons Attribution-Share Alike 2.0 Generic license. Attribution: NorthernLights by Colin Smith You are free: to share – to copy, distribute and transmit