EU High Representative for Foreign Affairs and Security Catherine Ashton said she had had useful and constructive talks with the highest Serbian officials, with a view to the preparation of the next round of the Belgrade-Pristina dialogue in Brussels. She said that in talks with Serbian President Tomislav Nikolić, PM Ivica Dacic and Deputy PM Aleksandar Vucic, she had tried to approximate the stands of the two sides on the eve of the next meeting of PM Dacic with the premier of the provisional Kosovo institutions, Hashim Thaci, in Brussels, on March 20. Source; Radio Srbija