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  1. 2019
  2. Published
    Heringa, A. W., & Hardt, S. (2019). Comparativer Constitutional Law Documents. The Hague: Eleven International publishing.
  3. 2018
  4. Published
    Heringa, A. W., Hardt, S., & Waltermann, A. (Eds.) (2018). Bevrijdende en begrenzende soevereinteit. (Montesquieu Reeks). Den Haag: Boom Juridisch.
  5. Published
    Heringa, A. W., Hardt, S., & Waltermann, A. (2018). Epiloog: bevrijdende oen begrenzende soeveriniteit? In A. W. Heringa, S. Hardt, & A. Waltermann (Eds.), Bevrijdende en begrenzende soevereiniteit (pp. 147-154). (Montesquieu Reeks). Den Haag: Boom Juridisch.
  6. 2017
  7. Published
    Hardt, S. (2017). - Het Duitse kiesstelsel – een alternatief voor Nederland? Voor en tegen van het ‘personalisierte Mehrheitswahlrecht’. In A. W. Heringa, & J. Schinkelshoek (Eds.), De Stembus: Honderd jaar algemeen kiesrecht en evenredige vertegenwoordiging 1917-2017 (pp. 85-92). (Montesquieu Reeks; Vol. 9). Den Haag: Boom Juridisch.
  8. Published
    Hardt, S., & Kornet, N. (Eds.) (2017). The Maastricht Collection. (5 ed.) Groningen : Europa Law Publishing.
  9. 2015
  10. Published
  11. Published
  12. 2014
  13. Published
  14. Published
  15. 2013
  16. Published
  17. Published
  18. Published
  19. 2012
  20. Published
    Hardt, S., van der Woude, W., & Verhey, L. F. M. (2012). Parliaments and military missions. Groningen: Europa Law Publishing.
  21. 2011
  22. Published
  23. 2010
  24. Published
    Hardt, S., (2010). EHRC 2010, 47, (Syngelidis v. Greece), No. 47, Feb 11, 2010. (European Human Rights Cases; No. 222537).
  25. 2008
  26. Published
    Hardt, S. (2008). Selected provisions from the Dutch Administrative Law Act (AWB) (Translation to English). In P. Kiiver, & N. Kornet (Eds.), The Maastricht Collection. Selected national, European and international provisions from public and private Law (pp. 121-140). Groningen: Europa Law Publishing.
  27. Published
    Kiiver, P., & Hardt, S. (2008). Selected provisions from the French Constitution (translation into English). In P. Kiiver (Ed.), Sources of Constitutional Law: Selected Provisions from Constitutions and Fundamental Legislation of the United States, France, Germany, the Netherlands and the United Kingdom (pp. 11-23). Groningen: Europa Law Publishing.
  28. Published
    Hardt, S. (2008). Selected provisions from the French Criminal Code (C. Pén.) (Translation to English). In P. Kiiver, & N. Kornet (Eds.), The Maastricht Collection. Selected national, European and international provisions from public and private Law (pp. 147-152). Groningen: Europa Law Publishing.
  29. Published
    Hardt, S. (2008). Selected provisions from the German Administrative Court Procedure Act (VwGO) (Translation to English). In P. Kiiver, & N. Kornet (Eds.), The Maastricht Collection. Selected national, European and international provisions from public and private Law (pp. 115-120). Groningen: Europa Law Publishing.
  30. Published
    Hardt, S. (2008). Selected provisions from the German Administrative Procedure Act (VwVfG) (Translation to English). In P. Kiiver, & N. Kornet (Eds.), The Maastricht Collection. Selected national, European and international provisions from public and private law (pp. 101-114). Groningen: Europa Law Publishing.
  31. Published
    Hardt, S. (2008). Selected provisions from the German Criminal Code (StGB) (Translation into English). In P. Kiiver, & N. Kornet (Eds.), The Maastricht Collection - Selected National, European and International Provisions from Public and Private Law (pp. 153-158). Groningen: Europa Law Publishing.