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    • Measuring a Pig's Preference for Suspended Toys by Using an Automated Recording Technique 

      Zonderland, J.J.; Vermeer, H.M.; Vereijken, P.F.G.; Spoolder, H.A.M. (International Commission of Agricultural Engineering, 2003-02)
      This is a Technical Paper from International Commission of Agricultural Engineering (CIGR, Commission Internationale du Genie Rural) E-Journal Volume 5 (2003): J.J. Zonderland, H.M. Vermeer, P.F.G. Vereijken, and H.A.M. ...