Lando Kirchmair is Euregio Endowed Chair in Sustainability and Mobility Law at the Department of Theory and Future of Law at the University of Innsbruck, Austria.Lisa Lechner is Assistant Professor in Methodology and Methods for Political Science at the University of Innsbruck, Austria.

• Introduction. What Is Legal (Citation) Network Analysis and to What Purpose is it Pursued in European Constitutional Law?, Lando Kirchmair, Lisa Lechner and Isabel Staudinger; Part I – Southern and Western National European Constitutional Courts; 2. The Austrian Constitutional Court: Supranationally Oriented, but Comparatively One-Sided, Lando Kirchmair, Lisa Lechner, Isabel Staudinger, Georg Berger, Christoph Ivanusch, Christian Schwaderer and Sarah Weiler; 3. Citation Behaviour of the Belgian Constitutional Court: A Predominant Supranational Perspective, Jan Theunis; 4. The French Constitutional Council: On the Margins of Contemporary Transconstitutional Dynamics, Guillaume Tusseau; 5. Unrequited Love or Secret Passion? The German Federal Constitutional Court's Approach to Comparativism, Alexander Tischbirek; 6. The Italian Constitutional Court: A Long Journey Towards (Asymmetric) openness, Tanja Groppi and Valentina Carlino; 7. The Portuguese Constitutional Court: From a Good Pupil to a Cosmopolitan Court?, Catarina Santos Botelho and Nuno Garoupa; 8. The Spanish Constitutional Court and European Judicial Interaction Patterns: A Tale of Two Ends, Joan Solanes; Part II – Central and Eastern National European Constitutional Courts; 9. The Bulgarian Constitutional Court and its Increasing Appetite for Engagement in Judicial Cross-Referencing, Martin Belov and Aleksandar Tsekov; 10. The Czech Constitutional Court at its Thirtieth Anniversary: Looking at Citation Patterns of Three Decades, Zdeněk Kühn; 11. Reluctance and Randomness: A case study on the foreign law citation practice of the Hungarian Constitutional Court, Eszter Bodnár and András Jakab; 12. Transnational Legal Echoes: Assessing Foreign Court Impacts on the Polish Constitutional Court's jurisprudence, Monika Florczak-Wątor; 13. Conclusion, Lando Kirchmair and Lisa Lechner; Annex.

'The idea that there are transnational networks of constitutional courts has come to play an important role in comparative constitutional scholarship. This valuable study shows quantitatively that evidence for such networks from citation practices is quite thin. The authors' qualitative analysis suggests that constitutional courts do pay attention to each other behind the scenes. The study identifies fruitful areas for further scholarship on the composition of transnational constitutional networks.'Mark Tushnet, William Nelson Cromwell Professor of Law emeritus, Harvard Law School, USA

Lando Kirchmair is Euregio Endowed Chair in Sustainability and Mobility Law at the Department of Theory and Future of Law at the University of Innsbruck, Austria.Lisa Lechner is Assistant Professor in Methodology and Methods for Political Science at the University of Innsbruck, Austria.

• Introduction. What Is Legal (Citation) Network Analysis and to What Purpose is it Pursued in European Constitutional Law?, Lando Kirchmair, Lisa Lechner and Isabel Staudinger; Part I – Southern and Western National European Constitutional Courts; 2. The Austrian Constitutional Court: Supranationally Oriented, but Comparatively One-Sided, Lando Kirchmair, Lisa Lechner, Isabel Staudinger, Georg Berger, Christoph Ivanusch, Christian Schwaderer and Sarah Weiler; 3. Citation Behaviour of the Belgian Constitutional Court: A Predominant Supranational Perspective, Jan Theunis; 4. The French Constitutional Council: On the Margins of Contemporary Transconstitutional Dynamics, Guillaume Tusseau; 5. Unrequited Love or Secret Passion? The German Federal Constitutional Court's Approach to Comparativism, Alexander Tischbirek; 6. The Italian Constitutional Court: A Long Journey Towards (Asymmetric) openness, Tanja Groppi and Valentina Carlino; 7. The Portuguese Constitutional Court: From a Good Pupil to a Cosmopolitan Court?, Catarina Santos Botelho and Nuno Garoupa; 8. The Spanish Constitutional Court and European Judicial Interaction Patterns: A Tale of Two Ends, Joan Solanes; Part II – Central and Eastern National European Constitutional Courts; 9. The Bulgarian Constitutional Court and its Increasing Appetite for Engagement in Judicial Cross-Referencing, Martin Belov and Aleksandar Tsekov; 10. The Czech Constitutional Court at its Thirtieth Anniversary: Looking at Citation Patterns of Three Decades, Zdeněk Kühn; 11. Reluctance and Randomness: A case study on the foreign law citation practice of the Hungarian Constitutional Court, Eszter Bodnár and András Jakab; 12. Transnational Legal Echoes: Assessing Foreign Court Impacts on the Polish Constitutional Court's jurisprudence, Monika Florczak-Wątor; 13. Conclusion, Lando Kirchmair and Lisa Lechner; Annex.

'The idea that there are transnational networks of constitutional courts has come to play an important role in comparative constitutional scholarship. This valuable study shows quantitatively that evidence for such networks from citation practices is quite thin. The authors' qualitative analysis suggests that constitutional courts do pay attention to each other behind the scenes. The study identifies fruitful areas for further scholarship on the composition of transnational constitutional networks.'Mark Tushnet, William Nelson Cromwell Professor of Law emeritus, Harvard Law School, USA

Lando Kirchmair is Euregio Endowed Chair in Sustainability and Mobility Law at the Department of Theory and Future of Law at the University of Innsbruck, Austria.Lisa Lechner is Assistant Professor in Methodology and Methods for Political Science at the University of Innsbruck, Austria.

• Introduction. What Is Legal (Citation) Network Analysis and to What Purpose is it Pursued in European Constitutional Law?, Lando Kirchmair, Lisa Lechner and Isabel Staudinger; Part I – Southern and Western National European Constitutional Courts; 2. The Austrian Constitutional Court: Supranationally Oriented, but Comparatively One-Sided, Lando Kirchmair, Lisa Lechner, Isabel Staudinger, Georg Berger, Christoph Ivanusch, Christian Schwaderer and Sarah Weiler; 3. Citation Behaviour of the Belgian Constitutional Court: A Predominant Supranational Perspective, Jan Theunis; 4. The French Constitutional Council: On the Margins of Contemporary Transconstitutional Dynamics, Guillaume Tusseau; 5. Unrequited Love or Secret Passion? The German Federal Constitutional Court's Approach to Comparativism, Alexander Tischbirek; 6. The Italian Constitutional Court: A Long Journey Towards (Asymmetric) openness, Tanja Groppi and Valentina Carlino; 7. The Portuguese Constitutional Court: From a Good Pupil to a Cosmopolitan Court?, Catarina Santos Botelho and Nuno Garoupa; 8. The Spanish Constitutional Court and European Judicial Interaction Patterns: A Tale of Two Ends, Joan Solanes; Part II – Central and Eastern National European Constitutional Courts; 9. The Bulgarian Constitutional Court and its Increasing Appetite for Engagement in Judicial Cross-Referencing, Martin Belov and Aleksandar Tsekov; 10. The Czech Constitutional Court at its Thirtieth Anniversary: Looking at Citation Patterns of Three Decades, Zdeněk Kühn; 11. Reluctance and Randomness: A case study on the foreign law citation practice of the Hungarian Constitutional Court, Eszter Bodnár and András Jakab; 12. Transnational Legal Echoes: Assessing Foreign Court Impacts on the Polish Constitutional Court's jurisprudence, Monika Florczak-Wątor; 13. Conclusion, Lando Kirchmair and Lisa Lechner; Annex.

'The idea that there are transnational networks of constitutional courts has come to play an important role in comparative constitutional scholarship. This valuable study shows quantitatively that evidence for such networks from citation practices is quite thin. The authors' qualitative analysis suggests that constitutional courts do pay attention to each other behind the scenes. The study identifies fruitful areas for further scholarship on the composition of transnational constitutional networks.'Mark Tushnet, William Nelson Cromwell Professor of Law emeritus, Harvard Law School, USA