NEW: Slovenian Prime Minister John Johnša says Slovenia will withhold agreement to further progress in Serbia's EU accession talks until Belgrade hands over former Yugoslavian security and military archives related to Slovenia. The statement followed the victory in the elections of the student lists. The European Commission says bilateral disputes should be dealt with constructively and are not part of the accession negotiations themselves. The January statementšas reported by Siol the Commission's response. The leading Balkan news channel in English.