SVT avslöjar: Sjöfarten mellan svenska hamnar släpper ut mer än inrikesflyget Wilhelm Wohlfahrt6 maj 2019
Competition should be prioritised over or on par with remote towers concept Wilhelm Wohlfahrt26 mars 2019
Capt. Sullenberger on the FAA and Boeing: ‘Our credibility as leaders in aviation is being damaged’ Wilhelm Wohlfahrt21 mars 2019