Cook J.W., Kirkby R.H., Booth M.G., Foster K.T., Clarke D.E.A., Young G., The noise and crosstalk environment for ADSL and VDSL systems, Communications Magazine, IEEE, Vol. 37, Issue 5, 1999, 73-78.

Huberman S., Leung C., Le-Ngoc T., Dynamic Spectrum Management (DSM) Algorithms for Multi-User xDSL, Communications Surveys & Tutorials, IEEE, Vol. 14, Issue 1, 2012, 109-130.

Kalet I., Multitone Modulation, Subband and Wavelet Transforms, The Kluwer International Series in Engineering and Computer Science, Vol. 340, 1995, 391-412.

Sorbara S.M., Cioffi J.M., Silverman P.J., DSL Advances, Prentice Hall, 2003.

Csányi K.P., Kóczy L.T., Tikk D., Intelligent Solutions for Umbrella Systems in Telecommunication Supervision Systems, International Journal of Information and Communication Engineering, 1, 7, 2005, 346-351.

ITU-T, Recommendation G.992.1, Asymmetric digital subscriber line (ADSL) transceivers, 06/1999.

ITU-T, Recommendation G. 991.2, Single-pair high-speed digital subscriber line (SHDSL) transceivers, 02/2001.

Lilik F., Kóczy L.T., Performance Evaluation of Wire Pairs in Telecommunication Networks by fuzzy and Evolutionary Models, IEEE Africon 2013 Conference Mauritius, 9th–12th September 2013, 712-716.

Spahija B., Deljac Z., Proactive copper pair troubleshooting utilizing Principal Component Analysis, 18th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2010), Brač, Croatia, 23–25.09.2010.

Kóczy L.T., Tikk D., Botzheim J., Intelligens rendszerek, Széchenyi István Egyetem, Györ 2008.

Zadeh L.A., The Concept of a Linguistic Variable and its Application to Approximate Reasoning-I, Journal of Information Science, Vol. 8, Issue 3, 1975, 199-249.

Sugeno M., Hirano I., Nakamura S., Kotsu S., Developement of an intelligent unmanned helicopter, Proc. IEEE Int. Conf. Fuzzy Systems, Vol. 5, 1995, 33-34.

Tormási A., Botzheim J., Single-stroke character recognition with fuzzy method, New Concepts and Applications in Soft Computing SCI, Vol. 417, V.E. Balas et al. (eds.), 2012, 27-46.

ITU-T, Recommendation X.200, Data Networks and Open System Communications, Open System Interconnection – Model and Notation, 07/94.

Lilik F., Kóczy L.T., The Determination of the Bitrate on Twisted Pairs by Mamdani Inference Method, Studies in Computational Intelligence, L.T. Kóczy et al. (eds.), Springer International Publishing Switzerland, 2014, 59-74.

Goralski W., xDSL loop qualification and testing, IEEE Communications Magazine, Vol. 37, Issue 5, 1999, 79-83.

Faulkner R., Schmidt K.E., Zhang Y., Method and apparatus for qualifying loops for data services, United States Patent, Pat. No. US 6,385,297 B2, May 7, 2002.

Mamdani E.H., Assilian S., An Expriment in Linguistic Synthesis with a Fuzzy Logic Controller, International Journal of Man-Machine Studies, Vol. 7, 1975, 1-13.

Balázs K., Kóczy L.T., Constructing Dense, Sparse and Hierarchical Fuzzy Systems by Applying Evolutionary Optimization Techniques, Applied and Computational Mathematics, Vol. 11, No. 1, 2012, 81-101.

Zadeh L.A., CFuzzy sets, Information and Control, Vol. 8, Issue 3, June 1965, 338-353.

ITU-T, Recommendation G. 902, Framework recommendation on functional access networks (AN), 11/1995.

Lilik F., Simonyi P., Kóczy L.T., A Novel Method of Improving the Service Level of ADSL Connections, International Congress on Control and Information Processing 2013, ICCIP 2013, Cracow 12.07–12.08.2013, 25.