Labrador, M. A., Wightman, P. M., & Perez, A. J. [ca. 2011]. Location-based information systems : developing real-time tracking applications. In Chapman & Hall/CRC computer and information science series [Cd]. Boca Raton: CRC Press.

LABRADOR, Miguel A., WIGHTMAN, Pedro M. und PEREZ, Alfredo Jose, 2011. Location-based information systems : developing real-time tracking applications. Boca Raton: CRC Press. ISBN 9781439848555.

Labrador, M. A., P. M. Wightman, und A. J. Perez. „Location-based information systems : developing real-time tracking applications“. Chapman & Hall/CRC computer and information science series, cd, CRC Press, 2011.

Labrador, Miguel A./Wightman, Pedro M./Perez, Alfredo Jose: Location-based information systems : developing real-time tracking applications, Boca Raton 2011.

Labrador, M.A., Wightman, P.M. und Perez, A.J. (2011), Location-based information systems : developing real-time tracking applications, Chapman & Hall/CRC computer and information science series, Bd. , CRC Press, Boca Raton.