Prof. dr. sc. Biljana Kostadinov objavila je poglavlje u knjizi Rule of Law, Human Rights and Judicial Control of Power : Some Reflections from National and International Law (Ius Gentium:Comparative Perspectives on Law and Justice), koju su uredili Rainer Arnold i Jos Ignacio Martnez-Estay. Rad profesorice Kostadinov problematizira sudski nadzor nad neposrednom demokracijom i nosi naslov Direct participation of the People in Public Power – Advantages and Disadvantages of a Referendum, Croatian and European Perspective.