(ANSA) - BELGRADE, APR 27 - A vote in the UN General Assembly on a contentious resolution on the Srebrenica genocide, originally scheduled for May 2, has been postponed and will not take place before May 6, ANSA learned from diplomatic sources at the United Nations. This is the second postponement of the resolution, which was scheduled for a vote on April 27. According to sources, the new postponement stems from a failure to finalise the document's definitive text. The Serbian and Bosnian Serb leaderships strongly oppose the resolution on Srebrenica, proposed by Bosnia-Herzegovina's permanent representative to the United Nations, Zlatko Lagumdzija, and supported by Germany and other major Western countries. (ANSA).