1. Teitsma A. Pipeline inspection by intelligent high resolution and conventional magnetic flux leakage pigs. Proceedings of the International Conference on Pipeline Reliability. Calgary, Alberta, 2–5 June 1992.
2. Atherton DL, Laursen P. Magnetic flux leakage: the Shape of things to come. Proceedings of the Pipeline Pigging Conference. Houston, TX, USA, 13–16 February 1995.
3. Atherton DL. MFL detector developments. Proceedings of the International Conference on Pipeline Reliability. Calgary, Alberta, 2–5 June1992.
4. Ferromagnetism;Bozorth,1993
5. Introduction to solid state physics;Kittel,1964