Susanne Alt
Ronald Snijders
https://www.ronaldsnijders.nl Photo credits: Andy Newcombe Farnborough, UK, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons
https://www.ronaldsnijders.nl Photo credits: Andy Newcombe Farnborough, UK, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons