| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Boo Hoo: A Dot Com Story | 978-0-09-941837-5 (0-09-941837-1) | 2002 | Erik Portanger · Charles Drazin |
| Boo Hoo: a Dot-com Story | 978-0-7126-7239-9 (0-7126-7239-7) | 2001 | Erik Portanger · Charles Drazin |
| Boo Hoo: A dot.com Story from Concept to Catastrophe | 978-0-7126-7992-3 (0-7126-7992-8) | 2001 | Kajsa Leander · Erik Portanger |