THEORETICAL RESEARCH REGARDING THE RISK-FREE WORK OF THE GANTRY CRANES. Journal of Engineering Studies and Research, [S. l.], v. 21, n. 4, p. 54–59, 2015. DOI: 10.29081/jesr.v21i4.133. Disponível em: https://jesr.ub.ro/journal/article/view/133. Acesso em: 14 sep. 2025.