Trajković S, Lutovac S, Ilić S, Bajić S, Ravilić M. Estimation of the quality of built-in concrete by the ultrasound observations. ume [Internet]. 31Dec.2011 [cited 22Nov.2024];(19):137-4. Available from: https://ume.rgf.bg.ac.rs/index.php/ume/article/view/89