| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr | 
|---|---|---|
| Use of Earth's Magnetic Field for Pedestrian Navigation: An approach to urban and indoor orientation estimation using smart-phones and personal navigation devices | 978-3-8465-8221-3 (3-8465-8221-2) | 2012 | 
H.A. · M.A. · M. H. · Muhammad Afzal · Muhammad Haris