@article {,
	title = {Sistema sensor para la detecci{\'o}n de objetos/obst{\'a}culos en puntos cr{\'\i}ticos de l{\'\i}neas f{\'e}rreas.},
	volume = {P201000354},
	year = {2013},
	month = {03/2013},
	address = {Espa{\~n}a},
	author = {D. Pizarro and M. Marr{\'o}n and A. Gardel and Mazo, M. and F. J. Rodriguez and I. Bravo and S. E. Palazuelos}
}
