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This work was supported by National Natural Science Foundation of China (Grant No. 61379072).
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Lin, H., Huang, H. & Hu, C. Trivariate B-spline solid construction by pillow operation and geometric iterative fitting. Sci. China Inf. Sci. 61, 118103 (2018). https://doi.org/10.1007/s11432-017-9376-8
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DOI: https://doi.org/10.1007/s11432-017-9376-8