| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1988 | 978-0-9619606-0-5 | Niels J. Jensen · Tom Purser · Rasmus Pape | Elephant Gambit |
| 1991 | 978-0-9619606-1-2 | Tom Purser | Blackmar Diemer Gambit: Correspondence Tournament, 1985-1987 |
| 1995 | 978-0-9619606-2-9 | Alan L Watson | The anti-Dutch spike: G4! in the Krejcik, Korchnoi and Alapin variations |