Wiki - manqala.org - Elo /Referències

The theory of Rating Sistems: http://ourworld.cs.com/royjones1999/
Algorithm for the French go rating system: http://ffg.jeudego.org/ECHELLE/algo.html
Reversi ratings: http://www.playsite.com/t/games/board/reversi/rating.html
Hex ratings: http://www.playsite.com/t/games/board/hex/rating.html
The ELO rating system: http://gobase.org/rating/elo.html
Approximating Formulas for the USCF Rating System: http://math.bu.edu/people/mg/ratings/approx/approx.html
The USCF Rating System: http://www.swissperfect.com/handbook/USCFrating.htm