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\bibitem{AlexandersonWetzel:1978}
Gerald~L. Alexanderson and John~E. Wetzel.
\newblock Simple partitions of space.
\newblock {\em Mathematics Magazine}, 51:220--225, 1978.

\bibitem{AlexandersonWetzel:1981}
Gerald~L. Alexanderson and John~E. Wetzel.
\newblock Arrangements of planes in space.
\newblock {\em Discrete Mathematics}, 34:219--240, 1981.

\bibitem{Bressoud:1999}
David~M. Bressoud.
\newblock {\em Proofs and Confirmations: The Story of the Alternating Sign
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\newblock Mathematical Association of America, Washington, DC, 1999.

\bibitem{Dodgson:1866}
Charles~L. Dodgson.
\newblock Condensation of determinants.
\newblock {\em Proceedings of the Royal Society, London}, 15:150--155, 1866.

\bibitem{Needham:1959}
Joseph Needham.
\newblock {\em Science and Civilisation in China}, volume~3.
\newblock Cambridge University Press, 1959.

\bibitem{Pederson:2004}
Jean Pederson.
\newblock Platonic divisions of space.
\newblock In David~F. Hayes and Tatiana Shubin, editors, {\em Mathematical
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  Association of America, Washington, DC, 2004.

\bibitem{Polya:1965}
George P{\'o}lya.
\newblock {\em Let Us Teach Guessing}.
\newblock video. The Mathematical Association of America, Washington, DC, 1965.

\bibitem{Robbins:1991}
David~P. Robbins.
\newblock The story of 1, 2, 7, 42, 429, 7436, $\ldots$.
\newblock {\em The Mathematical Intelligencer}, 13:12--19, 1991.

\bibitem{Erdos:1973}
Joel Spencer, editor.
\newblock {\em Paul {E}rd{\"o}s: The art of counting, selected writings}.
\newblock MIT Press, Cambridge, MA, 1973.

\bibitem{Steiner:1826}
J.~Steiner.
\newblock Einige gesetze {\"u}ber die theilung der ebene und des raumes.
\newblock {\em J. reine angew. Math.}, 1:349--364, 1826.

\bibitem{Zeilberger:1996b}
Doron Zeilberger.
\newblock Proof of the refined alternating sign matrix conjecture.
\newblock {\em New York Journal of Mathematics}, 2:59--68, 1996.

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