@book {byers,
	AUTHOR = {Byers, William},
	TITLE = {How Mathematicians Think},
	NOTE = {Using ambiguity, contradiction, and paradox to create mathematics},
	PUBLISHER = {Princeton University Press},
	ADDRESS = {Princeton, NJ},
	YEAR = {2007},
	}

@book{borges,
	AUTHOR = {Borges, Jorge Luis},
	TITLE = {Collected Fictions},
	NOTE = {Translated by Andrew Hurley},
	PUBLISHER = {Penguin},
	ADDRESS = {New York, NY},
	YEAR = {1998},
	}
	
@article{gupta,
	AUTHOR = {Gupta, Sunetra},
	TITLE = {Avoiding ambiguity},
	YEAR = {2001},
	JOURNAL = {Nature},
	VOLUME = {412},
	NUMBER = {6847},
	PAGES = {589},
	}
	
@article{lockhart,
	AUTHOR = {Lockhart, Paul},
	TITLE = {A mathematician's lament},
	YEAR = {2008},
	JOURNAL = {MAA Online},
	NOTE = {\url{http://www.maa.org/devlin/devlin_03_08.html}},
	}