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}
 
}
 
@conference {KorBleDohKreLibMer-IIGEFTERFCIP-2009,
 
@conference {KorBleDohKreLibMer-IIGEFTERFCIP-2009,
title = {Interoperable Interactive Geometry For Europe {\textendash} First Technological and Educational Results and Future Challenges of the Intergeo Project},
+
title = {Interoperable Interactive Geometry For Europe - First Technological and Educational Results and Future Challenges of the Intergeo Project},
 
booktitle = {Proceedings of the Sixth Congress of the European Society for Research in Mathematics Education. January 28th - February 1st 2009, Lyon (France)},
 
booktitle = {Proceedings of the Sixth Congress of the European Society for Research in Mathematics Education. January 28th - February 1st 2009, Lyon (France)},
 
year = {2009},
 
year = {2009},