TY - JOUR TI - An update on privacy in ubiquitous computing, Personal and Ubiquitous Computing DO - https://doi.org/10.1007/s00779-008-0210-7 SP - 389 EP - 390 PY - 2009-01-01 JO - Personal and Ubiquitous Computing AU - Spiekermann-Hoff, Sarah AU - Langheinrich, Marc ER -