Analysis of information sources in references of the Wikipedia article "European colonization of the Americas" in English language version.
It is now estimated that 11,863,000 slaves were shipped across the Atlantic. [Note in original: Paul E. Lovejoy, "The Impact of the Atlantic Slave Trade on Africa: A Review of the Literature," in Journal of African History 30 (1989), p. 368.] ... It is widely conceded that further revisions are more likely to be upward than downward.