1. Aeromedia. (2012). Nuovo volo Torino-Lisbona operato dalla TAP Portugal/New Turin-Lisbon Service Operated by TAP Portugal [New Turin-Lisbon flight operated by TAP Portugal/New Turin-Lisbon Service Operated by TAP Portugal.]. Aero Media.http://www.aeromedia.it/taptolis.html
2. Air Nostrum_IBERIA Regional. (2022). Air Nostrum. http://www.airnostrum.es/home.asp?idioma=2
3. Regional development in airlines and travel agents relationship
4. Buyck, C. (2009). Iberian Success: Air Nostrum Thrives as an Independent Regional With Strong Ties to Iberia. ATW: Air Transport World, 46(6). https://trid.trb.org/view/890798
5. Codes—Airline and Location Codes Search. (n.d.). IATA. https://www.iata.org/en/publications/directories/code-search/