Venhryn, B. Ya.     Physical-chemical features of ultrasonic modification of porous and electronic structures of carbon materials [Текст] / B.Ya. Venhryn, I.I. Grygorchak, S.I. Mudry, I.V. Typilo // 5th International workshop on functional and nanostructured materials : abstr. book, 31 Aug. - 6 Sept. 2008, Lviv, Ukraine. — Lviv, 2008. — P. 72-73.