What is the Benacerraf Problem?
Justin Clarke-Doane
A (Leibnizian) Theory of Concepts
Edward N. Zalta
Music by the Numbers From Pythagoras to Schoenberg
Eli Maor
Herodotus: A Very Short Introduction
Jennifer T. Roberts
The Hayek-Keynes-Sraffa controversy reconsidered
Heinz D. Kurz