Karachentsev, I. D.; Kashibadze, O. G. (2006). «Masses of the local group and of the M81 group estimated from distortions in the local velocity field». Astrophysics49 (1): 3-18. Bibcode:2006Ap.....49....3K. doi:10.1007/s10511-006-0002-6.
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Karachentsev, I. D.; Kashibadze, O. G. (2006). «Masses of the local group and of the M81 group estimated from distortions in the local velocity field». Astrophysics49 (1): 3-18. Bibcode:2006Ap.....49....3K. doi:10.1007/s10511-006-0002-6.