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

Heeffer, Albrecht. 2010. “Estienne De La Roche’S Appropriation Of Chuquet (1484)”. In 3rd International Conference of the European Society for the History of Science, 3rd International Conference of the European Society for the History of Science, Hermann Hunger.

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

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. In Press. “Dutch Algebra And Arithmetic In Japan Before The Meiji Restoration” I.M. Vandoulakis and Dun, Liu. Navigating across Mathematical Cultures and Times: Exploring the Diversity of Discoveries and Proofs.

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

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

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