| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Relativistic Action at a Distance: Classical & Quantum Aspects, Barcelona, Spain 1981 | 978-0-387-11573-3 (0-387-11573-0) | 1982 | |
| Relativistic Action at a Distance: Classical and Quantum Aspects: Proceedings of the Workshop Held in Barcelona, Spain, June 15-21, 1981 | 978-3-540-11573-1 (3-540-11573-0) | 1982 |