1. Assessment of new hub-and-spoke and point-to-point airline network configurations;Alderighi;Transp. Rev.,2007
2. How air transport connects the world – A new metric of air connectivity and its evolution between 1990 and 2012;Allroggen;Transp. Res. Part E,2015
3. Arvis, J., Shepherd, B., 2013. Global Connectivity and Export Performance, Economic Premise. The World Bank, Available at http://siteresources.worldbank.org/EXTPREMNET/Resources/ EP111.pdf.
4. Air Transport Action Group (ATAG), 2018. Aviation: Benefits Beyond Borders (2018), Available at https://www.atag.org/component/attachments/attachments.html?id=707.
5. Analysis of the airport network of India as a complex weighted network;Bagler;Physica A: Stat. Mech. Appl.,2008