Efficient Evaluation of Location Predicates for Access Control Systems. - Philipp Marcus; Claudia Linnhoff-Popien (EMS, 2012)

Towards coupling user and device locations using biometrical authentication on smartphones. - Matthias Trojahn; Philipp Marcus (ICITST, 2012)

Securing Mobile Device-Based Machine Interactions with User Location Histories. - Philipp Marcus; Moritz Kessel; Claudia Linnhoff-Popien (MobiSec, 2012)

Location-Aware RBAC Based on Spatial Feature Models and Realistic Positioning. - Philipp Marcus; Lorenz Schauer; Claudia Linnhoff-Popien (CRiSIS, 2014)

SURFtogether: Towards Context Proximity Detection Using Visual Features. - Marco Maier; Chadly Marouane; Manuel Klette; Florian Dorfmeister; Philipp Marcus; Claudia Linnhoff-Popien (ICCASA, 2014)

Quality Estimation for Zone-based LBS under Realistic Positioning Systems. - Philipp Marcus; Claudia Linnhoff-Popien (ICCASA, 2014)

Estimating crowd densities and pedestrian flows using wi-fi and bluetooth. - Lorenz Schauer; Martin Werner 001; Philipp Marcus (MobiQuitous, 2014)

Erfassung und Behandlung von Positionsfehlern in standortbasierter Autorisierung. - Philipp Marcus (2015)

Towards feasible Wi-Fi based indoor tracking systems using probabilistic methods. - Lorenz Schauer; Philipp Marcus; Claudia Linnhoff-Popien (IPIN, 2016)

GeoFPE: Format Preserving Encryption of Geospatial Data for the Internet of Things. - Alexander Lenk; Philipp Marcus; Isabel Povoa (ICIOT, 2018)