@INPROCEEDINGS{iros05chen, author={Zezhi Chen and Pe, P. and McDermid, J. and Pears, N. E.}, booktitle={Intelligent Robots and Systems, 2005. (IROS 2005). 2005 IEEE/RSJ International Conference on}, title={Two-stage visual localisation: landmark-based pose initialisation and model-based pose refinement}, year={2005}, month=aug., pages={3763 - 3769}