TY - JOUR AU - Nicolás Fernández-García AU - Oscar Rosas-Ortiz TI - Rectangular Potentials in a Semi-Harmonic Background: Spectrum, Resonances and Dwell Time JO - Symmetry, integrability and geometry: methods and applications PY - 2011 VL - 7 UR - http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a43/ LA - en ID - SIGMA_2011_7_a43 ER -