en

  1. History
14th IJM 2020: Professor XING Quansheng, Qingdao, China 15th UJM 2021: Professor Wolfgang Motz, Berlin, Germany

2018 Düsseldorf,Germany

2017 Taipei,Taiwan

2017 Taipei,Taiwan/China

2016 Maebashi,Japan

2015 Bad Oeynhausen,Germany

2014 Xiamen,China