two citations

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    @article{nowak2006five,
      title={Five rules for the evolution of cooperation},
      author={Nowak, M.A.},
      journal={Science},
      volume={314},
      number={5805},
      pages={1560--1563},
      year={2006},
      publisher={American Association for the Advancement of Science}
    }
   @book{delanda2006new,
         title={A new philosophy of society: Assemblage theory and social complexity},
         author={DeLanda, M.},
         year={2006},
         publisher={Continuum}
        }
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    \begin{document}
    Evolutionary games.\supercite{nowak2006five}  Assemblages.\supercite{delanda2006new}
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