@article {11158,
	title = {Three-dimensional track-ballast interaction model for the study of a culvert transition},
	journal = {Soil Dynamics and Earthquake Engineering},
	volume = {89},
	year = {2016},
	pages = {116-127},
	author = {Varandas, J.N. and P. Holscher and Silva, M. A. G.}
}
