1. O hraní a hračkách Creator: KOLÁŘ, Jaroslav Format: electronic Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. Úvaha nad tablem Creator: KOLÁŘ, Jaroslav Format: electronic Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public