Pecháček, František, 1950- Power ultrasound in machining. Hrušková, Erika, 1976- In: Novi Sad : Faculty of Technical Sciences, 2009. -- MMA 2009. Flexible Technologies : Proceedings. 10th international scientific conference. - Novi Sad, 9.-10.10. 2009. -- s.60-63. -- 978-86-7892-223-7.