@article{article, title = {{Convergence Analysis of the Multi-Frequency Approach around a Variable-Helix Instability Island}}, publisher = {{Elsevier BV}}, url = {{}}, year = {{2019}}, month = {{7}}, author = {{Ure帽a L and Ozturk E and Sims N}}, doi = {{10.1016/j.procir.2019.04.054}}, volume = {{82}}, journal = {{Procedia CIRP}}, pages = {{279-284}}, note = {{Accessed on 2025/08/16}}}