Investigation of the sound intensity level in the case of a universal latheSergiu-Constantin Olaru, Laurențiu Slătineanu, Manuela Silitră, Andrei-Marius Mihalache and Margareta CoteațăMATEC Web Conf., 112 (2017) 01025DOI: https://doi.org/10.1051/matecconf/201711201025