Structural analysis of deep soil loosening machine MAS-65 Mihai Gabriel Matache, Remus Marius Oprescu, Dragos Nicolae Dumitru, Gabriel Valentin Gheorghe, Dan Cujbescu and Cătălin Persu E3S Web Conf., 112 (2019) 03034 Published online: 20 August 2019 DOI: 10.1051/e3sconf/201911203034