• Opening address. ClosingEngelbrecht, Jüri8th Baltic Conference on Intellectual Co-operation, 15-16 June 2001, Tallinn, Estonia : proceedings2002 / p. 9-10, 140
• Science and technology in EstoniaEngelbrecht, Jüri8th Baltic Conference on Intellectual Co-operation, 15-16 June 2001, Tallinn, Estonia : proceedings2002 / p. 59-66