However, despite the close connection of Fredman (1976) to the problem of sorting partially ordered data and hence to the 1/3–2/3 conjecture, it is not mentioned in that paper. Fredman, M. L. (1976), "How good is the information theory bound in sorting?", Theoretical Computer Science, 1 (4): 355–361, doi:10.1016/0304-3975(76)90078-5