@article{SIGMA_2011_7_a28,
     author = {David J. Fern\'andez C. and Manuel Gadella and Luis Miguel Nieto},
     title = {Supersymmetry {Transformations} for {Delta} {Potentials}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a28/}
}