| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Urban Public Transportation Systems: Ensuring Sustainability Through Mass Transit: Proceedings of the Second International Conference, April 14-18, 2002, Alexandria, Virginia, United States | 978-O-7844-O717-2 (O-7844-O717-7) | 2004 |
W. K. · Walter Kalk · Walter Klaus · Walter Klisch · Walter Kloek · Walter Klug · Walter Kolosky · Walter Kowalski · Walther Kaluza · Walther Klaus · Wiltrud Kuhlisch