The market for international callback services / Cathy Clarke
Wireless networks : catching the mobile future: proceedings / ed. by Jos H. Weber, Jens C. Arnbak, Ramjee Prasad
Doing business with OFTEL : a guide for suppliers and large users of telecommunications services to how the regulatory process works and how to make the best of it / Office of Telecommunications
Antennas and propagation : ninth international conference: 4-7 April 1995 / org. by the Electronics Division of the Institution of Electrical Engineers and the Technical University of Eindhoven