@article{SIGMA_2013_9_a10,
     author = {Jose A. Franco},
     title = {On the $n${-Dimensional} {Porous} {Medium} {Diffusion} {Equation} and {Global} {Actions} of the {Symmetry} {Group}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2013},
     volume = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2013_9_a10/}
}