 Complete the following phrase:  After the treaty had been signed, Novgorods sovereignty was seriously undermined. Direct Muscovite rule was not yet established, but the independent republican system was seriously curtailed. Vasili II was so content with this treaty that he made some minor territorial concessions to Novgorod. Most of the provisions of the Treaty of Yazhelbitsy were observed by both sides. For example, the Novgorodian stamps for notarizing documents were exchanged for Muscovite ones immediately after the conclusion of the treaty. Some provisions, however, were constantly violated, which could be explained by discrepancies and controversial wording in the two different versions of the treaty. The Novgorodians continued to admit the enemies of Muscovy to their city in violation of the provision that they not make peace with the grand princes enemies. Vasili II and later his successor Ivan III, in turn violated the articles of the treaty regarding territorial integrity of the republic, adjudicating cases in favor of Muscovite boyars who were seizing Novgorodian estates. Both sides were constantly accusing each other of violating the treaty within the course of the next 15 years. In the end, the discrepancies and controversial wording of the Treaty of Yazhelbitsy led to 