- Holden, R., et al. (2014). Project SLAM: Single Logistics Activity Measure. SRF Technical Report CUED/C-SRF/TR05 ISSN: 2054-4081,Cambridge University Engineering Department, Cambridge.
- Holden, R., et al. (2014), ‘Towards a Common Measure of GHG-related Logistics Activity Using Data Envelopment Analysis.’ Transportation Research Part E: Logistics and Transportation Review (in review).