B:34

“Linee larghe. Un'ambiguità geometrica dimenticata”. Bollettino di Storia delle Scienze Matematiche 15 (1995), 3–14. Text of preprint

E:64

[Review of A. Presas i Puig, Praktische Geometrie und Kosmologie am Beispiel der Architektur. (Algorismus, 27). München: Institut für Geschichte der Naturwissenschaften, 1998]. Mathematical Reviews MR1872989 (2003f:01069).

G:11

“Sub‑scientific Mathematics: Undercurrents and Missing Links in the Mathematical Technology of the Hellenistic and Roman World”. Filosofi og videnskabsteori på Roskilde Universitetscenter. 3. Række: Preprints og Reprints 1990 nr. 3. Forthcoming in Aufstieg und Niedergang der römischen Welt, II vol. 37,3 (if that volume should ever happen to appear!). Manuscript.

C:56

AWhat Is Mathematics: Perspectives Inspired by Anthropology@, pp. 179B196 in John W. Adams, Patrick Barmby & Alex Mesoudi (eds), The Nature and Development of Mathematics: Cross Disciplinary Perspectives on Cognition, Learning and Culture. London & New York: Routledge, 2017.

C:57

APractitioners B School Teachers B `Mathematicians': The Divisions of Pre-Modern Mathematics and Its Actors@, pp. 207B224 in John M. Steele & Mathieu Ossendrijver (eds), Studies on the Ancient Exact Sciences in Honor of Lis Brack-Bernsen. Berlin: Edition Topoi, 2017.