Zeitschriftenartikel
Schrijver, C. J.; DeRosaand, M. L.; Metcalf, T. R.; Liu, Y.; McTiernan, J.; Regnier, S.; Valori, G.; Wheatland, M. S.; Wiegelmann, T.: Nonlinear force-free modeling of coronal magnetic fields Part I: A quantitative comparison of methods. Solar Physics
235, S. 161 - 190 (2006)