Article Claessens, Guy (2014)
A Sixteenth-Century Neoplatonic Synthesis: Francesco Piccolomini's Theory of Mathematics and Imagination in the Academicae Contemplationes. British Journal for the History of Science (pp. 421-431). (/isis/citation/CBB001451159/) unapi

Article Claessens, Guy (2013)
Platonic Reminiscence or Aristotelian Remembering? Pietro Catena’s Philosophy of Mathematics. Physis: Rivista Internazionale di Storia della Scienza. (/isis/citation/CBB332997385/) unapi

Article Claessens, Guy (2012)
Francesco Piccolomini on Prime Matter and Extension. Vivarium: Journal for Mediaeval Philosophy and the Intellectual Life of the Middle Ages (p. 225). (/isis/citation/CBB001210776/) unapi

Article Claessens, Guy (2011)
Imagination as Self-knowledge: Kepler on Proclus' Commentary on the First Book of Euclid's Elements. Early Science and Medicine: A Journal for the Study of Science, Technology and Medicine in the Pre-modern Period (p. 179). (/isis/citation/CBB001034167/) unapi

Article Claessens, Guy (2009)
Clavius, Proclus, and the Limits of Interpretation: Snapshot-Idealization versus Projectionism. History of Science (p. 317). (/isis/citation/CBB000952870/) unapi