Holger P. Hestermeyer (Max Planck Institute for Comparative Public Law and International Law),
Doris König (Bucerius Law School),
Nele Matz-Lück (Max Planck Institute for Comparative Public Law and International Law),
Volker Röben (Swansea Univ. - Law),
Anja Seibert-Fohr (Max Planck Institute for Comparative Public Law and International Law),
Peter-Tobias Stoll (Göttingen Univ. - Law), &
Silja Vöneky (Univ. of Freiburg - Law) have published
Coexistence, Cooperation and Solidarity: Liber Amicorum Rüdiger Wolfrum (Martinus Nijhoff Publishers 2011). The table of contents is
here.