@article{Andrade2018, author = "M. A. De Andrade and L. G. Ferreira Filho", title = "{A train that moves using the force of Gravity}", year = "2018", month = "1", url = "https://scielo.figshare.com/articles/dataset/A_train_that_moves_using_the_force_of_Gravity/5816283", doi = "10.6084/m9.figshare.5816283.v1" }