SoonKil, Hong     Speech to be delivered at ceremony of the 70th anniversary of National aviation university, Ukraine [Текст] / Hong SoonKil // The World Congress "Aviation in the X X I-st Century", 14-16 september / International Civil Aviation Organization; Ministry of Education and Science of Ukraine; National Academy of Sciences of Ukraine; National Aviation University. — Kyiv : NAU, 2003. — С. 6.1-6.3.