Lawrey, Eric, and Kikkert, Cornelis Jan (2001) Maximizing signal strength for OFDM inside buildings. IEEE Transactions on Microwave Theory and Techniques, 49 (11). pp. 2131-2136.

Lawrey, Eric, and Kikkert, C.J. (2000) Maximising signal strength inside buildings for wireless LAN systems using OFDM. In: Proceedings of the Asia Pacific Microwave Conference APMC 2000. From: 2000 Asia-Pacific Microwave Conference, 03 - 06 December 2000, Sydney, NSW, Australia.