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Austrian President Alexander Van der Bellen (R) and visiting Serbian President Aleksandar Vucic attend a press conference in Vienna, Austria, on Feb. 2, 2018. (Xinhua/Pan Xu)
Austrian President Alexander Van der Bellen (R) and visiting Serbian President Aleksandar Vucic attend a press conference in Vienna, Austria, on Feb. 2, 2018. (Xinhua/Pan Xu)