Nonlinear Force-free Modeling of a Long-lasting Coronal SigmoidDOI: info:10.1088/0004-637X/703/2/1766v. 7031766–1777
Savcheva, Antonia and van Ballegooijen, Adriaan A. 2009. "Nonlinear Force-free Modeling of a Long-lasting Coronal Sigmoid." The Astrophysical Journal, 703 1766–1777. https://doi.org/10.1088/0004-637X/703/2/1766.