2. Encyclopedia of Public International Law (R. Bernhardt, ed.), prepared under the auspices of the Max Planck Institute of Foreign Public Law and International Law, Heidelberg, published by North-Holland, Amsterdam 1981-90.
2. Encyclopedia of Public International Law (edición a cargo de R. Bernhardt), preparada bajo los auspicios del Instituto Max Planck de Derecho Público Comparado y Derecho Internacional, Heidelberg, publicada por North-Holland, Amsterdam, 1981 a 1990.