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Constitutional Court of Peru

According to Kelsen's model, the Constitutional Court acts as a negative legislator, lacking the power to make laws but with the power to repeal all or portions of the unconstitutional laws/acts.

Hans Kelsen

In 1908 Kelsen won a research scholarship which allowed him to attend the University of Heidelberg for three consecutive semesters, where he studied with the distinguished jurist Georg Jellinek before returning to Vienna.

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Among the principal writers in English on Kelsen are Robert S. Summers, Neil MacCormick and Stanley L. Paulson.

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While still in Austria, Kelsen entered the debate on the versions of Public Law prevailing in his time by engaging the predominating opinions of Jellinek and Gerber in his 1911 Habilitation dissertation (see description above).

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The study makes a rigorous examination of the "two swords doctrine" of Pope Gelasius I, along with Dante's distinct sentiments in the Roman Catholic debates between the Guelphs and Ghibellines, and Kelsen's conversion to Catholicism was contemporaneous to the book's completion in 1905.

see also