-
[1]
. Vector FieldsLimited, OPERA-2d\3d User Guide and Ref-erence Manual.[Z], Oxford, 19992. LI Quan-Feng. Magnetic Numerical Calculation and Magnet Design, Beijing: Tsinghua University Press, 2002 (in Chinese)(李泉风. 电磁场数值计算与电磁铁设计, 北京: 清华大学出版社, 2002)