Hey, J. , Howey, D. , Martinez-Botas, R. , Lamperth, M. (2010), 'Transient Thermal Modeling of an Axial Flux Permanent Magnet (AFPM) Machine Using a Hybrid Thermal Model', World Academy of Science, Engineering and Technology, Open Science Index 47, International Journal of Mechanical and Mechatronics Engineering, 4(11), 1274 - 1283.