1. ACI, 2011. “Automobile statistics".
2. ANFIA, ACI 2013. Trasporto merci su strada. analisi economico-statistica delle potenzialità e criticità di un settore strategico per lo sviluppo sostenibile, pp. 102.
3. The milk run revisited: a load factor paradox with economic and environmental implications for urban freight transport;Arvidsson;Transportation research Part A,2013
4. Review of road hauliers’ measures for increasing transport efficiency and sustainability in urban freight distribution;Arvidsson;Transport Reviews,2013
5. The cost of urban congestion: estimation of welfare losses arising from congestion on cross-town link roads;Bilbau-Ubillos;Transportation Research Part A,2008