President Vaclav Havel of the Czech Republic will arive on a one-day working visit to Bulgaria on September 14, 2001 at the invitation of Bulgarian President Peter Stoyanov, the President`s Press Office announced. He will discuss with his Bulgarian counter partner Stoyanov Bulgarian negotiations to join EU and NATO, Balkan conflicts and peace process also. President Havel made a one-day official visit to Bulgaria in April 1992. President Stoyanov visited the Czech Republic soon after taking office, between February 28 and March 1, 1997. In 1991 the then Bulgarian president Zhelyu Zhelev paid an official friendly visit to Czecho-Slovakia.