M.S. · M. Singer · Marc P. Singer
Gabler · Harvard Business School Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Net Value. Der Wert des digitalen Kunden | 978-3-409-11539-1 (3-409-11539-0) | 2000 | John Hagel | |
| Net Worth | 978-0-87584-889-1 (0-87584-889-3) | 1999 | John Hagel III |