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and interesting DC insights here:

http://www.electron.co.uk/pdf/ba-heathrow.pdf

https://cdn1.ait-pg.co.uk/wp-content/uploads/2016/09/British_Airways_Case_Study.pdf

http://www.star-ref.co.uk/media/43734/case-study-no-02-british-airways.pdf

http://assets.raritan.com/case_studies/downloads/british-airways-raritan-case-study.pdf