%0 Journal Article %A R. Adami %A D. Noja %T Nonlinearity-defect interaction: symmetry breaking bifurcation in a NLS with a $\delta$' impurity %J Nanosistemy: fizika, himiâ, matematika %D 2011 %P 5-19 %V 2 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2011_2_4_a0/ %G en %F NANO_2011_2_4_a0