Full upright and locked position : not-so-comfortable truths about air travel today
Blood, iron & gold : how the railways transformed the world
Die Bedeutung eines Flughafens für die Wirtschaft in seiner Umgebung
Pricing behaviour and non-price characteristics in the airline industry
The Data Economy : Implications from Singapore
Proceedings - System Safety Symposium, Seattle, Washington, 8. - 10.6.1965