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Miyoshi, Makoto; etal. (12 January 1995). "Evidence for a black hole from high rotation velocities in a sub-parsec region of NGC4258". Nature. 373 (6510): 127–129. Bibcode:1995Natur.373..127M. doi:10.1038/373127a0. S2CID4336316.
Miyoshi, Makoto; etal. (12 January 1995). "Evidence for a black hole from high rotation velocities in a sub-parsec region of NGC4258". Nature. 373 (6510): 127–129. Bibcode:1995Natur.373..127M. doi:10.1038/373127a0. S2CID4336316.