202 citations as recorded by crossref.

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57. Maximally Using GPS Observation for Water Vapor Tomography Y. Yao & Q. Zhao https://doi.org/10.1109/TGRS.2016.2597241
58. Real-Time Precise Point Positioning Using Tomographic Wet Refractivity Fields W. Yu et al. https://doi.org/10.3390/rs10060928
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