Sigmoidal Active Region on the Sun: Comparison of a Magnetohydrodynamical Simulation and a Nonlinear Force-free Field ModelDOI: info:10.1088/0004-637X/750/1/15v. 75015
Savcheva, A., Pariat, E., van Ballegooijen, Adriaan A., Aulanier, G., and DeLuca, Edward E. 2012. "Sigmoidal Active Region on the Sun: Comparison of a Magnetohydrodynamical Simulation and a Nonlinear Force-free Field Model." The Astrophysical Journal, 750 15. https://doi.org/10.1088/0004-637X/750/1/15.