• Focusing aspects of delayed time reversal based nonlinear elastic wave spectroscopy methodsLints, Martin; Dos Santos, Serge; Salupere, Andrus2016 IEEE International Ultrasonics Symposium, IUS : [September 18-21, Tours, France]2016 / [4] p. : ill https://doi.org/10.1109/ULTSYM.2016.7728831