Wireless enhanced 9-1-1 service - Making it a reality. - Michael J. Meyer; Terry Jacobson; Maria E. Palamara; Elizabeth A. Kidwell; Robert E. Richton; Giovanni Vannucci (Bell Labs Tech. J., 1996)

Performance benchmarking for wireless location systems. - Sirin Tekinay; Ed Chao; Robert E. Richton (IEEE Commun. Mag., 1998)

Geolocation and Assisted GPS. - Goran M. Djuknic; Robert E. Richton (Computer, 2001)