@article {458, title = {A Theory for the Thermally Activated Rate Constant in Systems with Spatially Dependent Friction}, journal = {Chem. Phys. Lett.}, volume = {207}, year = {1993}, pages = {309-316}, doi = {10.1016/0009-2614(93)89005-3}, author = {Haynes, G. R. and G. A. Voth and Pollak, E.} }