A Fast Method for Calculating Magnetic Hysteresis Loops
I. Stockem, C. Schröder, IEEE Transactions on Magnetics 51 (2015) 1–4.

Magnetic cobalt nanocrystals organized in patches and chains
D. Sudfeld, K. Wojczykowski, W. Hachmann, S. Heitmann, K. Rott, T. Hempel, S. Kammerer, P. Jutzi, A. Hutten, G. Reiss, IEEE Transactions on Magnetics 38 (2002) 2601–2603.