%0 Journal Article %A Nicolás Fernández-García %A Oscar Rosas-Ortiz %T Rectangular Potentials in a Semi-Harmonic Background: Spectrum, Resonances and Dwell Time %J Symmetry, integrability and geometry: methods and applications %D 2011 %V 7 %U http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a43/ %G en %F SIGMA_2011_7_a43