@article{PhysRevB.48.17569, Author = {N{\"o}ckel, Jens U. and Stone, A. Douglas and Baranger, Harold U.}, Journal = {Phys. Rev. B}, Month = {Dec}, Number = {23}, Pages = {17569--17572}, Title = {Adiabatic turn-on and the asymptotic limit in linear-response theory for open systems}, Volume = {48}, Year = {1993}}