31.
Chang-Hwan Im, Hyun-Kyo Jung, Ji-Hoon Kim, Song-Yop Hahn, Sung-Chin Hahn, "Three-dimensional Optimization of Modular Toroid-type SMES," Conference on Computation of Electromagnetic Field, COMPUMAG 2003, Vol. III, pp. 68-69, July, 2003, Saratoga Springs, NY, USA.