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  • × author_ss:"Barkow, P."
  1. Nicholson, S.; Sierra, T.; Eseryel, U.Y.; Park, J.-H.; Barkow, P.; Pozo, E.J.; Ward, J.: How much of it is real? : analysis of paid placement in Web search engine results (2006) 9.75 
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    Author
    Nicholson, S.