Leide
| 2 |
| Carel Vosmaer | 2 |
| Raymond Bogaert | 2 |
| Joël Emanuel Goudsmit | 1 |
| Willem Louis de Sturler | 1 |
| 1974 | The case law of the International court VII. - A | 633 |
| 1974 | The case law of the International court VII. - B | — |
| 1973 | General index to the collected courses of the Hague Academy of international law Vol. 102-125 | 185 |
| 1973 | Law of copyright, competition, and industrial property | 1384 |
| 1973 | Recueil des cours Tomes 135-137 | — |
| 1972 | Le Régime modernisateur du Brésil, 1964-1972 | 296 |
| 1972 | Sources of international uniform law | — |
| 1972 | The case law of the International court VI. - A | 637 |
| 1972 | The case law of the International court VI. - B | — |
| 1971 | Recueil des cours Tomes 129-131 | — |
| 1971 | Recueil des cours Tomes 132-134 | — |
| 1970 | La Supranationalité en tant que principe de droit | 178 |
| 1970 | Recueil des cours Tomes 126-128 | 750 |
| 1970 | The law of treaties | 443 |
| 1969 | La Pensée politique du fédéralisme | 144 |
| 1969 | Pleadings, oral arguments documents... Mémoires, plaidoiries et documents | — |
