1. Air Accident Investigation Branch (AAIB). AAIB investigation to DJI M600 pro (UAS, registration N/a) 131219, 25 June 2020.https://www.gov.uk/aaib-reports/aaib-investigation-to-dji-m600-pro-uas-registration-n-a-131219
2. Air Accident Investigation Branch (AAIB): Annual safety review 2021, 14 June 2022. https://www.gov.uk/aaib-reports/annual-safety-review-2021
3. Berson, B.L., et al.: Aircraft alerting systems standardization study. Volume II. Aircraft alerting systems. Design guidelines. FAA (1981). https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/ADA106732.xhtml
4. Blanca, M.J., Alarcon, R., Arnau, J., Bono, R., Bendayan, R.: Non-normal data: is ANOVA still a valid option? Psicothema 29(4), 552–557 (2017). https://doi.org/10.7334/psicothema2016.383
5. Civil Aviation Authority (UK): CAA paper 2013/02: Monitoring matters - Guidance on the development of pilot monitoring skills (2013). https://publicapps.caa.co.uk/modalapplication.aspx?appid=11&mode=detail&id=5447