Bruno DE WITTE (ed), Dominik HANF (ed), Ellen VOS (ed), The Many Faces of Differentiation in EU Law, New York, Intersentia, 2001
DE BURCA, Grainne, Legal Principles as an Instrument of Differentiation, in Bruno DE WITTE (ed), Dominik HANF (ed), Ellen VOS (ed), The Many Faces of Differentiation in EU Law, New York, Intersentia, 2001
- https://hdl.handle.net/1814/3727