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Irwin, Jimmy A.; Sarazin, Craig L. (1996), "X-ray evidence for the interaction of the giant elliptical galaxy NGC 4472 with its Virgo Cluster environment", Astrophysical Journal, 471 (2): 683, Bibcode:1996ApJ...471..683I, doi:10.1086/177998, S2CID121141029.
Irwin, Jimmy A.; Sarazin, Craig L. (1996), "X-ray evidence for the interaction of the giant elliptical galaxy NGC 4472 with its Virgo Cluster environment", Astrophysical Journal, 471 (2): 683, Bibcode:1996ApJ...471..683I, doi:10.1086/177998, S2CID121141029.