@article{SIGMA_2012_8_a68,
     author = {David Berm\'udez},
     title = {Complex {SUSY} transformations and the {Painlev\'e} {IV} equation},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2012},
     volume = {8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a68/}
}