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References
Mathieu Carpentier
(2018)., Sources and validity, in P. Westerman, J. Hage, S. Kirste & A. R. Mackor (eds.), Legal validity and soft law, Dordrecht, Springer, pp. 75-97.
(2018)., Sources and validity, in P. Westerman, J. Hage, S. Kirste & A. R. Mackor (eds.), Legal validity and soft law, Dordrecht, Springer, pp. 75-97.