@article {2004|1846,
	title = {Overcoming free energy barriers using unconstrained molecular dynamics simulations},
	journal = {J. Chem. Phys.},
	volume = {121},
	year = {2004},
	pages = {2904{\textendash}2914},
	author = {J{\'e}r{\^o}me H{\'e}nin and Christophe Chipot}
}
