@article{zeilberger-2008-on, title={On the unity of duality}, volume={153}, ISSN={0168-0072}, url={http://dx.doi.org/10.1016/j.apal.2008.01.001}, DOI={10.1016/j.apal.2008.01.001}, number={1-3}, journal={Annals of Pure and Applied Logic}, publisher={Elsevier BV}, author={Zeilberger, Noam}, year={2008}, month=Apr, pages={66–96} }