B. de C. Leal, J. A. F. de Macedo, V. C. Times, M. A. Casanova, V. M. P. Vidal, and M. T. M. de Carvalho, “From Conceptual Modeling to Logical Representation of Trajectories in DBMS-OR and DW Systems”, JIDM, vol. 2, no. 3, p. 463, Oct. 2011.