Longitudinal mode L(0,4) used for the determination of the deposit width on the wall of a pipeChati, Farid; Leon, Fernand; El Moussaoui, Mustapha; Klauson, Aleksander; Maze, GerardNDT&E international2011 / p. 188-194 : ill https://doi.org/10.1016/j.ndteint.2010.12.001