Publications

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2011
Heeffer, Albrecht. 2011. From Problem Solving To The Teaching Of Algebra: The Genesis Of The Algebra Textbook Fanny Seroglou, Koulountzos, Vassilis, and Siatras, Anastasios. 11th international IHPST and 6th Greek history, philosophy and science teaching joint conference, Proceedings: 344-347.
2010
Heeffer, Albrecht. 2010. From The Second Unknown To The Symbolic Equation Albrecht Heeffer and Van Dyck, Maarten. Philosophical Aspects of Symbolic Reasoning in Early Modern Mathematics 26: 57–102.
Heeffer, Albrecht. 2010. From The Second Unknown To The Symbolic Equation Albrecht Heeffer and Van Dyck, Maarten. Philosophical Aspects of Symbolic Reasoning in Early Modern Mathematics 26: 57–102.