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David Gale (1979). "The Game of Hex and Brouwer Fixed-Point Theorem". The American Mathematical Monthly. 86 (10). Mathematical Association of America: 818–827. doi:10.2307/2320146. JSTOR2320146.
Pawlewicz, Jakub; Hayward, Ryan (2013). "Scalable Parallel DFPN Search"(PDF). Proc. Computers and Games. Archived(PDF) from the original on 9 October 2022. Retrieved 21 May 2014.
David Gale (1979). "The Game of Hex and Brouwer Fixed-Point Theorem". The American Mathematical Monthly. 86 (10). Mathematical Association of America: 818–827. doi:10.2307/2320146. JSTOR2320146.
Pawlewicz, Jakub; Hayward, Ryan (2013). "Scalable Parallel DFPN Search"(PDF). Proc. Computers and Games. Archived(PDF) from the original on 9 October 2022. Retrieved 21 May 2014.