2011 · Gonçalo Gonçalves Duarte Santos, Luis Martínez, et al. · European Transport Conference 2011Association for European Transport (AET)Transportation Research Board · 10
2021 · Mariana Vilaça, Gonçalo Gonçalves Duarte Santos, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)