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@TECHREPORT{,
       author = {Fernández-Madrigal, Juan-Antonio and Cruz-Martín, Ana},
        month = {aug},
        title = {Some experiments on the integration of symbolic and sub-symbolic learning based on imagery and abstraction},
         year = {2013},
  institution = {Centre for Robotic and Neural and Systems, CRNS, University of Plymouth (UK) Systems // Engineering and Automation Dpt., University of Málaga (Spain)}
}