Detection of axial cracks in pipes using focused guided wavesFletcher, Sam; Lowe, Michael John Stewart; Ratassepp, Madis; Brett, ColinJournal of nondestructive evaluation2012 / p. 56-64 : ill The Formation of microcracks in water-saturated porous ceramics during freeze–thaw cycles followed by acoustic emissionHulan, Tomaš; Knapek, Michal; Kaljuvee, Tiit; Uibu, MaiJournal of nondestructive evaluation2021 / art. 13 https://doi.org/10.1007/s10921-020-00748-4 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS