Security Concerns in 3G Networks. - José Costa-Requena; Inmaculada Espigares (IMSA, 2001)

SIP dealing with location based information. - José Costa-Requena; Haitao Tang; Inmaculada Espigares (J. Commun. Networks, 2001)

Consistent LBS Solution in Next Generations of Mobile Internet. - José Costa-Requena; Inmaculada Espigares (ICPADS, 2002)