@article {, title = {M{\'e}todo detector de ocupaci{\'o}n de circuitos de v{\'\i}a de ferrocarril, y dispositivo correspondiente.}, volume = {20072451}, year = {2010}, month = {02/2010}, address = {Espa{\~n}a}, author = {F. Espinosa and E.Santiso and J. J. Garc{\'\i}a and Mazo, M. and Fernandez, Ignacio and J.Ure{\~n}a and V. Marquez and A. Hernandez and Jose Antonio Jimenez} }