A Qualitative Representation Model about Trajectories in 2-D. - José Vicente Álvarez-Bravo; Juan Carlos Peris; M. Teresa Escrig; J. J. Álvarez-Sánchez; F. J. González-Cabrera (CCIA, 2006)

An Iconic Notation for Describing the Composition between Relations of a Qualitative Model Based on Trajectories. - F. J. González-Cabrera; M. Serrano-Montero; J. C. Peris-Broch; M. Teresa Escrig-Monferrer; José Vicente Álvarez-Bravo (DCAI, 2010)