Rodríguez, Juan Tinguaro and Franco, Camilo and Gómez, Daniel and Montero, Javier (2016) Paired Structures, Imprecision Types and Two-Level Knowledge Representation by Means of Opposites. In Novel Developments in Uncertainty Representation and Processing. Advances in Intelligent Systems and Computing, 1 (401). Springer, pp. 3-15. ISBN 978-3-319-26211-6 (Unpublished)