@article{EXMATH_1998_1998_1_a24,
     author = {Le\'on, Manuel de and Mart{\'\i}n de Diego, David},
     title = {Leyes de conservaci\'on y simetr{\'\i}a en modelos de crecimiento econ\'omico: una aproximaci\'on geom\'etrica.},
     journal = {Extracta mathematicae},
     pages = {335-348},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1998_1998_1_a24/}
}