Technological and morphological characteristics of acoustically assisted frozen “foie gras” (fattened duck liver)Desislava Vlahova-Vangelova, Desislav Balev, Nikolay Kolev, Rada Dinkova and Stefan DragoevBIO Web Conf., 45 (2022) 01010DOI: https://doi.org/10.1051/bioconf/20224501010