Modern Interpretation of Ancient Logics
- Scientific articles on formal aspects of Ancient Western and Indian Logic. Papers on modern interpretation of Aristotle's, Leibniz' and ancient Indian logic.
- http://logic.glashoff.net

The Modernity of Aristotle's Logical Investigations
- Article by George Boger, presented at the 20th World Congress in Philosophy.
- http://www.bu.edu/wcp/Papers/Logi/LogiBoge.htm

Aristotle's Singular Negative Syllogistic and Free Logic
- Article by V.I. Markin, Moscow State University.
- http://www.logic.ru/Engl/depart/Markin1.htm

Aristotelian and Modern Logic
- Article by Katalin Havas, discussing the nature of progress in logic, and the idea of logic as a perfected discipline.
- http://www.ifs.csic.es/sorites/Issue_04/item5.htm

Old Directions in Free Logic
- Article by Gyula Klima. An analysis of the controversy over existential import in syllogistic theory, relating it to modern work in Free Logic.
- http://www.fordham.edu/gsas/phil/klima/freelog.htm