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Shadow of a Schwarzschild black hole surrounded by a Bach–Weyl ring

Mingzhi Wang, Songbai Chen, Jieci Wang and Jiliang Jing

Eur. Phys. J. C, 80 2 (2020) 110

DOI: https://doi.org/10.1140/epjc/s10052-020-7641-3

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