Tatsuji Takahashi Kuratomo Oyo Shuji Shinohara A Loosely Symmetric Model of Cognition. 238-245 2009 ECAL (2) https://doi.org/10.1007/978-3-642-21314-4_30 conf/ecal/2009-2 db/conf/ecal/ecal2009-2.html#TakahashiOS09