Immanuel Kant
“Kant’s Account of Reason,” Garrath Williams
https://plato.stanford.edu/entries/kant-reason/
“The Analytic/Synthetic Distinction,” Georges Rey
https://plato.stanford.edu/entries/analytic-synthetic/
“Kant: Synthetic A Priori Judgments,” Garth Kemerling
http://www.philosophypages.com/hy/5f.htm
“Kant on the Web,” maintained by Stephen Palmquist
http://staffweb.hkbu.edu.hk/ppp/Kant.html
“Immanuel Kant: Links,” maintained by Richard Lee
https://rlee.hosted.uark.edu/semiau96/kantlink.html