Köbler, F., Koene, P., Krcmar, H., Altmann, M., Leimeister, J. M.: LocaTag - An NFC-based system enhancing instant messaging tools with real-time user location. 2. In: 2. International Workshop on Near Field Communication (NFC) 2010. Monaco, Monaco, 2010. - 180 (28-10)
Köbler, F., Koene, P., Krcmar, H., Altmann, M., Leimeister, J. M.: LocaTag - An NFC-based system enhancing instant messaging tools with real-time user location. 2. In: 2. International Workshop on Near Field Communication (NFC) 2010. Monaco, Monaco, 2010. - 180 (28-10)