1. A. Hubert, R. Schäfer: Magnetic Domains - The Analysis of Magnetic Microstructures ( Springer, Berlin Heidelberg 1998 )
2. For a general overview, see, e.g., J. Evetts (ed.): Concise Encyclopedia of Magnetic and Superconducting Materials ( Pergamon, Oxford, 1992 ), pp. 216
3. J. A. C. Bland, B. Heinrich (eds.): Ultrathin Magnetic Structures: An Introduction to the Electronic, Magnetic and Structural Properties Vols. I and II ( Springer, Berlin Heidelberg 1994 )
4. P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsly, H. Sowers: Phys. Rev. Lett. 57, 2442 (1986)
5. M. B. Salamon, S. Sinha, J. J. Phyne, J. E. Cunningham, R. W. Erwin, J. Borchers, C.P. Flynn: Phys. Rev. Lett. 56, 259 (1986)