Article Bielski, Andrzej; Dygdala, Roman S.; Wróblewski, Witold; (1983)
Przeglad problematyki drugiej ksiegi Optyki Witelona. (A review of the problems in the second books of Witelo's Optics.)

Article Unguru, Sabetai; (1976)
A very early acquaintance with Apollonius of Perga's treatise on conic sections in the Latin West

Article Bielski, Andrzej; Bieganowski, Lech; Wróblewski, Witold; (1986)
Mechanizm powstawania obrazu w oku i widzenie obuoczne w ksiedze III Perspektywy Witelona. (The formation of an image in the eye and two-eye vision in Book III of Witelo's Perspectiva.)

Article Paschetto, Eugenia; (1975)
Il “De natura daemonum” di Witelo

Article Unguru, Sabetai; (1978)
A 13th-century “proof” of the parallel postulate

Book Paschetto, Eugenia; (1978)
Demoni e prodigi: Note su alcuni scritti di Witelo e di Oresme

Book Witelo, ; (1994)
Witelona Perspektywy, ksiega IV. Przeklad na jezyk polski ze wstepem i komentarzami, przeklad z jezkya lacińskiego Wróblewski, Witold; wstep, opracowanie przekladu i komentarz Bieganowski, Lech, Bielski, Andrzej, Wróblewski, Witold

Chapter Unguru, Sabetai; (1987)
Mathematics and experiment in Witelo's Perspectiva

Chapter Unguru, Sabetai; (1991)
Experiment in medieval optics

Chapter Paschetto, Eugenia; (1986)
Witelo et Pietro d'Abano à propos des démons

Article Kelso, Carl, Jr.; (1994)
“Putting it together”: Witelo's Book 4 of the Perspectiva: Aesthetics and the art of making critical editions

Book Witelo, ; (1977)
Perspectivae liber primus: Book I of Witelo's Perspectiva. An English translation with introduction and commentary and Latin edition of the mathematical book of Witelo's Perspectiva, by Unguru, Sabetai

Article Theisen, Wilfred; (1977)
Witelo's recension of Euclid's “De visu”

Article Burchardt, Jerzy; (1983)
Les éléments nouveaux de psychopathologie dans la lettre de Witelo

Article Burchardt, Jerzy; (1988 (pub. 1991))
La place de Guillaume de Moerbeke dans la cosmologie médiévale et ses relations avec Witelo

Book Witelo, ; (1983)
Witelonis Perspectivae liber quintus=Book V of Witelo's Perspectiva: An English translation with introduction and commentary and Latin edition of the first catoptrical book of Witelo's Perspectiva, by Smith, A. Mark

Book Witelo, ; (1991)
Witelonis Perspectivae, liber secundus et liber tertius. Books II and III of Witelo's Perspectiva: A critical Latin edition and English translation with introduction, notes and commentaries by Unguru, Sabetai

Article Paravicini Bagliani, Agostino; (1975)
Witelo et la science optique à la Cour Pontificale de Viterbe (1277)

Thesis Kelso, Carl J., Jr.; (2003)
Witelonis perspectivae liber quartus: Book IV of Witelo's “Perspectiva”: A Critical Edition and English Translation with Introduction, Notes and Commentary

Thesis Witelo, ; (1977)
Witelo on the principles of reflection: A critical edition and English translation, with notes and commentary, of Book V of Witelo's Perspectiva [by] Smith, A. Mark