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This work was supported by National Natural Science Foundation of China (Grant Nos. 61370017, 61032009, 61120106004).
The authors declare that they have no conflict of interest.
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Zeng, T., Liu, T., Ding, Z. et al. A novel DEM reconstruction strategy based on multi-frequency InSAR in highly sloped terrain. Sci. China Inf. Sci. 60, 088301 (2017). https://doi.org/10.1007/s11432-016-0085-4