Addison-Wesley Verlag · Que Pub
| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Out of Office: How to Work from Home, Telecommute, or Workshift Successfully | 978-0-7897-5092-1 (0-7897-5092-9) | 2014 | |
| Social Location Marketing: Erreichen Sie Ihre Kunden mit Lokalisierungsdiensten | 978-3-8273-3108-3 (3-8273-3108-0) | 2011 | |
| Social Location Marketing: Outshining Your Competitors on Foursquare, Gowalla, Yelp & Other Location Sharing Sites | 978-0-7897-4721-1 (0-7897-4721-9) | 2011 |