A classification tree approach to identify key factors of transit service quality. - Juan de Oña; Rocio de Oña; Francisco J. Calvo (Expert Syst. Appl., 2012)

A Fuzzy Logic-Based Approach for Estimation of Dwelling Times of Panama Metro Stations. - Aránzazu Berbey Alvarez; Fernando Merchan; Francisco Javier Calvo Poyo; Rony Javier Caballero George (Entropy, 2015)