1. Mobile Marketing Association: MMA Updates Definition of Mobile Marketing (2009). https://www.mmaglobal.com/news/mma-updates-definition-mobile-marketing
2. Yaniv, G.: Sold on mobile marketing: effective wireless carrier mobile advertising and how to make it even more so. Int. J. Mob. Mark. 3(2), 86–91 (2008)
3. Mobile Marketing Association: Playbook MMA: Geolocalización aplicada al marketing (2016). https://www.mmaglobal.com/es/documents/geolocalizacion-aplicada-al-marketing
4. Newman, N.: Apple iBeacon technology briefing. J. Direct Data Digital Mark. Pract. 15, 222–225 (2014)
5. Andrews, M., Luo, X., Fang, Z., Ghose, A.: Mobile ad effectiveness: hyper-contextual targeting with crowdedness. Mark. Sci. 35, 218–233 (2016)