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.

Heeffer, Albrecht, and Maarten Van Dyck. 2010. 26 Studies in Logic Philosophical Aspects Of Symbolic Reasoning In Early Modern Mathematics. College Publications.

Heeffer, Albrecht. 2010. “The Reception Of Ancient Indian Mathematics By Western Historians” B.S. Yadav and Mohan, Man. Ancient Indian Leaps into Mathematics: 135–152.

Heeffer, Albrecht. 2010. “The Symbolic Model For Algebra: Functions And Mechanisms” Lorenzo Magnani, Carnielli, Walter A, and Pizzi, Claudio. Model-Based Reasoning in Science and Technology 314: 519–532. http://dx.doi.org/10.1007/978-3-642-15223-8\_29.

Heeffer, Albrecht. 2009. “The Abbaco Tradition (1300-1500): Its Role In The Development Of European Algebra”. Suuri Kaiseki Kenkyuujo koukyuuroku 1625: 23–33.

Heeffer, Albrecht. 2009. “The Abbacus Tradition: The Missing Link Between Arabic And Early Symbolic Algebra?”.

Weber, Erik, and Albrecht Heeffer. 2009. “Laudatio Jens Høyrup”. Sartoniana 22: 5–7.

Heeffer, Albrecht. 2009. “On The Nature And Origin Of Algebraic Symbolism”. In New Perspectives on Mathematical Practices. Essays in Philosophy and History of Mathematics., New Perspectives on Mathematical Practices. Essays in Philosophy and History of Mathematics., Bart Van Kerkhove. World Scientific Publishing. http://www.worldscibooks.com/etextbook/6810/6810\_chap01.pdf.

Heeffer, Albrecht. 2008. “A Conceptual Analysis Of Early Arabic Algebra” Shahid Rahman, Street, Tony, and Tahiri, Hassan. The unity of science in the arabic tradition : science, logic, epistemology and their interactions: 89–128. http://dx.doi.org/1854/11276.

Heeffer, Albrecht. 2008. “The Emergence Of Symbolic Algebra As A Shift In Predominant Models”. Foundations of Science 13: 149–161. http://dx.doi.org/10.1007/s10699-008-9124-0.

Heeffer, Albrecht. 2008. “An Introduction To Wasan, Native Japanese Mathematics”. History and Pedagogy of Mathematics 68: 20–24. http://dx.doi.org/1854/11413.

Heeffer, Albrecht. 2008. “Negative Numbers As An Epistemic Difficult Concept. Some Lessons From History.”. In History and Pedagogy of Mathematics. Satellite Meeting of International Congress on Mathematical Education 11, 14 - 18 July 2008., History and Pedagogy of Mathematics. Satellite Meeting of International Congress on Mathematical Education 11, 14 - 18 July 2008., C. Tzanakis. Centro Cultural del México Contemporanéo.

Urbaniak, Rafal. 2008. “Reducing Sets To Modalities” Alexander Hieke and Hannes, Leitgeb. Proceedings of the 31st International Wittgenstein Symposium of the Austrian Ludwig Wittgenstein Society XVI: 359-361.

Urbaniak, Rafal. 2008. “Reducing Sets To Modalities” Alexander Hieke and Hannes, Leitgeb. Proceedings of the 31st International Wittgenstein Symposium of the Austrian Ludwig Wittgenstein Society XVI: 359-361.

Heeffer, Albrecht. 2008. “Regiomontanus And Chinese Mathematics” Erik Weber. PHILOSOPHICA 82: 87–114.

Heeffer, Albrecht. 2008. “Text Production, Reproduction And Appropriation Within The Abbaco Tradition: A Case Study”. SCIAMVS 9: 101-145.

Heeffer, Albrecht. 2007. “Abduction As A Strategy For Concept Formation In Mathematics: Cardano Postulating A Negative.” Olga Pombo and Gerner, Alexander. Abduction and the process of scientific discovery: 179–194.

Primiero, Giuseppe. 2007. “On Building Abstract Terms In Typed Systems”. In Logica 2006 Yearbook, Logica 2006 Yearbook, O Tomala and Honzik, R. Filosofia Publisher.

Heeffer, Albrecht. 2007. “Father Henri Bosmans (S.j.) A Belgian Pioneer In The History Of Mathematics”. History and Pedagogy of Mathematics Newsletter 65: 12–15.

Heeffer, Albrecht. 2007. “Learning Concepts Through The History Of Mathematics: The Case Of Symbolic Algebra.” Karen François and Van Bendegem, Jean Paul. Philosophical dimensions in mathematics education: 83–103.

Heeffer, Albrecht. 2007. “Mathematics Education Through Lesson Study In The Asia-Pacific Region”. History and Pedagogy of Mathematics Newsletter 66: 4–6.

Heeffer, Albrecht, and Harold Heeffer. 2007. “Near-Optimal Strategies For The Game Of Logik”.

Heeffer, Albrecht, and Harold Heeffer. 2007. “Near-Optimal Strategies For The Game Of Logik”.

Heeffer, Albrecht. 2007. “The Tacit Appropriation Of Hindu Algebra In Renaissance Practical Arithmetic”. Ganita Bharati 29: 1–60.