McMahon, M. and Hadfield, M., 2007. The Butterfly Effect: Creative Sustainable Design Solutions through Systems thinking. In: The 16th International Conference on Flexible Automation and Intelligent Manufacturing: FAIM 2006, 26-28 June 2006, University of Limerick, Ireland, pp. 247-254.

Wang, W., Hadfield, M. and Wereszczak, A.A., 2007. C-Sphere Strength as an Indicator of Rolling Contact Performance of Silicon Nitride. In: Contact/Surface: Eighth International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics: Proceedings, 16-18 May 2007, Ashurst, New Forest, England, pp. 111-124.

Wang, W., Wereszczak, A.A. and Hadfield, M., 2007. Flexure Strength of Silicon Nitride as Indication of Rolling Contact Performance Measured on Ball-on-Rod and Modified Four-Ball Testers. In: 34th Leeds-Lyon Symposium on Tribology: Tribological Contacts and Component Life. Material transformation, fatigue, crack initiation and propagation, 4-7 September 2007, Lyon, France. (Unpublished)

Hadfield, M., 2007. Mechano-Erosion: A Novel Test Methodology to Accelerate Erosion in Rolling Contact Fatigue Experiments. DDME-8. In: DIPRE'07: Conference on Diagnosis and Prediction in Mechanical Engineering( Systems, 26-27 October 2007, Galati, Romania. (Unpublished)

Humphries-Smith, T., 2007. To Embed or not to Embed (Sustainability in the Curriculum) That is the Question – And Do We Have a Choice? In: Bohemia, E., Hilton, K., McMahon, C. and Clarke, A., eds. Shaping the Future? Proceedings of 9th Engineering and Product Design Education International Conference Northumbria University, Newcastle upon Tyne, 13th and 14th September 2007. Basildon, Essex: Hadleys, pp. 27-33.