Martinez-Martin, E., Teresa Escrig, M. and P. Del Pobil, A. 2013. A Qualitative Acceleration Model Based on Intervals. ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal. 2, 2 (Aug. 2013), 17–23. DOI:https://doi.org/10.14201/ADCAIJ2013251723.