Breather trapping and breather transmission in a DNA model with an interface A. Alvarez, F. R. Romero, J. F.R. Archilla, J. Cuevas and P. V. Larsen Eur. Phys. J. B, 51 1 (2006) 119-130 Published online: 31 May 2006 DOI: 10.1140/epjb/e2006-00191-0