@article {Kor-IIGE-2011,
	title = {Interoperable {I}nteractive {G}eometry for {E}urope},
	journal = {The Electronic Journal of Mathematics and Technology},
	volume = {5},
	number = {1},
	year = {2011},
	abstract = {The Intergeo project is driven by a consortium of commercial, semi-commercial and open- source software producers as well as mathematics educators from all over Europe. The primary goal is to make mathematics driven by interactive resources more accessible to all teachers and learners, by facilitating the search, use and quality assurance of them. In this article I will highlight the main obstacles we faced and how we approached them and give an outlook on the future of interactive geometry and the project. Furthermore, I will raise some didactical and research questions that should be answered if we really want to integrate computer-based teaching, learning and assessment into our curricula. This article is a written version of the keynote held at the CADGME 2010 conference in Hluboka, Czech Republic. It does not, cannot and should not contain references for all claims made, but rather summarize the Intergeo project and serve as an introduction to the various publi- cations of the project that are available on its website http://i2geo.net. We refer to those for a much deeper description of each of the issues raised, as well as proper references to existing work.},
	keywords = {Intergeo, refereed},
	url = {http://www.radford.edu/ejmt},
	author = {Kortenkamp, Ulrich}
}
@article {Kor-IIGE-2011,
	title = {Interoperable {I}nteractive {G}eometry for {E}urope},
	journal = {The Electronic Journal of Mathematics and Technology},
	volume = {5},
	number = {1},
	year = {2011},
	abstract = {<p>
	The Intergeo project is driven by a consortium of commercial, semi-commercial and open- source software producers as well as mathematics educators from all over Europe. The primary goal is to make mathematics driven by interactive resources more accessible to all teachers and learners, by facilitating the search, use and quality assurance of them. In this article I will highlight the main obstacles we faced and how we approached them and give an outlook on the future of interactive geometry and the project. Furthermore, I will raise some didactical and research questions that should be answered if we really want to integrate computer-based teaching, learning and assessment into our curricula. This article is a written version of the keynote held at the CADGME 2010 conference in Hluboka, Czech Republic. It does not, cannot and should not contain references for all claims made, but rather summarize the Intergeo project and serve as an introduction to the various publi- cations of the project that are available on its website http://i2geo.net. We refer to those for a much deeper description of each of the issues raised, as well as proper references to existing work.</p>
},
	keywords = {Intergeo, refereed},
	url = {http://www.radford.edu/ejmt},
	author = {Kortenkamp, Ulrich}
}
@conference {AbaBotEscHenKorKreLibMarMer-IFFP-2009,
	title = {The {I}ntergeo File Format in Progress},
	booktitle = {Proceedings of the 22nd OpenMath Meeting},
	year = {2009},
	abstract = {In this paper we describe the ongoing effort to specify a com- mon file format for Interactive or Dynamic Geometry Systems (DGS). Our approach is based on the OpenMath standard, and uses its flexible extension mechanisms like Content Dictionaries. We discuss the various design decisions, the Content Dictionaries that have been defined, as well as open questions to be resolved.},
	keywords = {Intergeo, refereed},
	author = {Ab{\'a}nades, Miguel and Botana, Francisco and Escribano, Jes{\'u}s and Hendriks, Maxim and Kortenkamp, Ulrich and Kreis, Yves and Libbrecht, Paul and Marques, Daniel and Mercat, Christian}
}
@conference {KorBleDohKreLibMer-IIGEFTERFCIP-2009,
	title = {Interoperable Interactive Geometry For Europe {\textendash} 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)},
	year = {2009},
	month = {January},
	publisher = {Proceedings of the Sixth Congress of the European Society for Research in Mathematics Education},
	organization = {Proceedings of the Sixth Congress of the European Society for Research in Mathematics Education},
	address = {Lyon (France)},
	abstract = {In this overview article we describe the manifold achievements and challenges of Intergeo, a project co-funded within the eContentplus programme2 of the European Union.},
	keywords = {Intergeo, refereed},
	url = {http://www.inrp.fr/publications/edition-electronique/cerme6/wg7-11-kortenkamp.pdf},
	author = {Kortenkamp, Ulrich and Blessing, Axel M. and Dohrmann, Christian and Kreis, Yves and Libbrecht, Paul and Mercat, Christian}
}
@conference {KorDohKreDor-UIPTR-2009,
	title = {Using the {I}ntergeo Platform for Teaching and Research},
	booktitle = {Proceedings of the 9th International Conference on Technology in Mathematics Teaching},
	year = {2009},
	publisher = {ICTMT-9},
	organization = {ICTMT-9},
	address = {Metz},
	abstract = {We describe the key achievements of Intergeo, a project co-funded within the eContentplus programme of the European Union, and their impact on teacher education, based on the technical and educational concepts of the Intergeo Platform.},
	keywords = {Intergeo, refereed},
	author = {Kortenkamp, Ulrich and Dohrmann, Christian and Kreis, Yves and Dording, Carole},
	editor = {Bardini, C. and Fortin, C. and Oldknow, Adrian and Vagost, D.}
}
@conference {KorKre-IIIGE-2008,
	title = {Intergeo {\textendash} {I}nteroperable {I}nteractive {G}eometry for {E}urope},
	booktitle = {Beitr{\"a}ge zum Mathematikunterricht. Vortr{\"a}ge auf der 42. Tagung f{\"u}r Didaktik der Mathematik in Budapest},
	year = {2008},
	publisher = {Tagung f{\"u}r Didaktik der 42. Mathematik in Budapest},
	organization = {Tagung f{\"u}r Didaktik der 42. Mathematik in Budapest},
	keywords = {Intergeo, invited},
	url = {http://www.mathematik.tu-dortmund.de/ieem/cms/media/BzMU/BzMU2008/BzMU2008/BzMU2008_KORTENKAMP_Ulrich\%20_\%20KREIS_Yves.pdf},
	author = {Kortenkamp, Ulrich and Kreis, Yves}
}
