TY - JOUR AU - Wahrburg, J. DO - doi:10.1302/0301-620X.90BSUPP_III.0900557a UR - https://doi.org/10.1302/0301-620X.90BSUPP_III.0900557a TI - OPTICAL AND ELECTROMAGNETIC METHODS OF POSITION RECOGNITION IN SPACE – WHICH IS BETTER T2 - Orthopaedic Proceedings VL - 90-B IS - SUPP_III PY - 2008 SP - 557 EP - 557 ER -