Nielsen, T. T., Wagard, J., Skjærris, S., Jensen, C. O. & Elling, J. (1998).
Enhancing Network Quality using Baseband Frequency Hopping, Downlink Power Control and DTX in a Live GSM Network. In
The Ninth IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 1998.: The Ninth IEEE International Symposium on IEEE Computer Society Press.
https://doi.org/10.1109/PIMRC.1998.734693
Elgaard, J., Klarlund, N.
& Møller, A. (1998).
MONA 1.x: New Techniques for WS1S and WS2S. In A. J. Hu & M. Y. Vardi (Eds.),
Computer Aided Verification: 10th International Conference, CAV'98 Vancouver, BC, Canada, June 28 – July 2, 1998 Proceedings (pp. 516-520). Springer.
https://doi.org/10.1007/BFb0028773