Add links to the papers you have read and think might interest others.

Example: Author(s) - Title of paper - data published yyyy/mm/dd (Your name - data added yyyy/mm/dd)

David Eppstein- Solving Single-digit Sudoku Subproblems.pdf arXiv:1202.5074v1 -2012/02/23 (Janna DeWind - 2012/03/02)
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