Babak, V. P     Technical diagnostics of materials and elements of aviation designs by the method of acoustic emission [Текст] / V.P Babak, S. Filonenko // 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. 2.1-2.7 : іл.