Lokajíček, T., Klíma, K. High-order statistics approach: Automatic determination of sign and arrival time of acoustic emission signals. In: ONO, K., ed. EWGAE - Kraków 2008 : proceedings of the 28-th European Conference on Acoustic Emission Testing. Kraków: European Working Group on Acoustic Emission (EWGAE) ; Cracow University of technology, 2008, s. 82-87. ISBN 978-83-7242-478-5.