• , 10 June 2019

An ACTE y GLOBAL BUSINESS TRAVEL report

• , 13 May 2019

A formless Global Business Travel (GBT)

• , 29 April 2019

Un sondeo de American Express Global Business Travel

• , 16 April 2019

A report by Observatur

• , 20 March 2019

Information from Captio

• , 06 March 2019

Travelport study