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. 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.

Heeffer, Albrecht. 2006. “The Origin Of The Problems In Euler's Algebra”. Bulletin of the Belgian Mathematical Society - Simon Stevin 13: 949–952.

Heeffer, Albrecht. 2014. “Epistemic Justification And Operational Symbolism”. Foundations of science 19: 89–113.

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

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

Heeffer, Albrecht. 2014. “Data-Driven Induction In Scientific Discovery: A Critical Assessment Based On Kepler's Discoveries” Erik Weber, Wouters, Dietlinde, and Meheus, Joke. Logic, reasoning, and rationality: 59–76.

Heeffer, Albrecht. 2003. “Kepler's Near Discovery Of The Sine Law: A Qualitative Computational Model.” Claudio Delrieux and Legris, Javier. Computer modeling of scientific reasoning: 93–102.

Heeffer, Albrecht. 2010. “Algebraic Partitioning Problems From Luca Pacioli's Perugia Manuscript (Vat. Lat. 3129)”. Sources and Commentaries in Exact Sciences 11: 3–51.

Heeffer, Albrecht. 2012. “The Rule Of Quantity By Chuquet And De La Roche And Its Influence On German Cossic Algebra” Sabine Rommevaux, Spiesser, Maryvonne, and Esteve, Maria Rosa Massa. Pluralité de l'algèbre à la Renaissance: 127–147.

Heeffer, Albrecht. 2006. “Récréations Mathématiques (1624): A Study On Its Authorship, Sources And Influence”. Gibecière 1: 77–167.

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.

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.

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

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. 2011. “The Rhetoric Of Problems In Algebra Textbooks From Pacioli To Euler”.

Heeffer, Albrecht. 2010. “The Body In Renaissance Arithmetic: From Mnemonics To Embodied Cognition”. In Proceedings of the Thirty Sixth Annual Convention of the Society for the Study of Artificial Intelligence and Simulation, Proceedings of the Thirty Sixth Annual Convention of the Society for the Study of Artificial Intelligence and Simulation, Alison Pease, Guhe, Markus, and Smaill, Alan. The Society for the Study of Artificial Intelligence and the Simulation of Behaviour.

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

Heeffer, Albrecht. Submitted. “On The Interpretation Of Early Italian Bartering Problems”.

Heeffer, Albrecht. 2011. “On The Curious Historical Coincidence Of Algebra And Double-Entry Bookkeeping” Karen François, Löwe, Benedikt, Müller, Thomas, and Van Kerkhove, Bart. Foundations of the formal sciences VII : bringing together philosophy and sociology of science 32: 109–130. http://www.collegepublications.co.uk/logic/?00021.

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. “Regiomontanus And Chinese Mathematics” Erik Weber. PHILOSOPHICA 82: 87–114.

Heeffer, Albrecht. 2006. “Van Precepten Tot Vergelijkingen. De Conceptuele Ontwikkeling Van Symbolische Algebra In De Zestiende Eeuw”.