Support for CDMA circuit mobiles in a SIP-based packet core network: A step on the path to IMS. - Bernard L. Cyr; Richard P. Ejzak; Joseph J. Lichter; John J. MacNamara; Thomas L. McRoberts; Joseph E. Seitz (Bell Labs Tech. J., 2004)

Packet evolution of the CDMA2000*-1x CDMA system. - Chris W. Donahue; G. Jay Hruska; James B. Jones; Joseph J. Lichter; Joseph E. Seitz; Ranga P. Tota; A. Larry Wierzbicki (Bell Labs Tech. J., 2007)