1. Bartsch R (2018) International Aviation Law, a Practical guide. 2nd edn., Routledge, p 134
2. Mauritz AJ (2003) Liability of the Operators and Owners of Aircraft for Damage Inflicted to Persons and Property on the Surface. Leiden University, Maastricht, pp 1–3
3. Smith P (2018) Cockpit Confidential: Everything you need to know about air travel: questions, answers, and reflections. Sourcebooks, pp 31, 44