@article{Sanfilippo:2017yL, author = "Sanfilippo, Francesco and Laio, Alessandro and Martinelli, Guido", title = "{Metadynamics Remedies for Topological Freezing}", doi = "10.22323/1.256.0274", journal = "PoS", year = 2017, volume = "LATTICE2016", pages = "274" }