Welcome Prof. Jerzy Surma from Warsaw School of Economics, Poland to be committee member!
Welcome Prof. Jerzy Surma from Warsaw School of Economics, Poland to be committee member!

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Welcome Prof. Jerzy Surma from Warsaw School of Economics, Poland to be committee member!    http://2020.bdeim.org/ https://s4.cnzz.com/z_stat.php%3Fid%3D1279218721%26show%3Dpic1'