Yulgok
Links
Yulgok Yi I (1536-1584)
http://homepage.ruhr-uni-bochum.de/Sven.K.Herbers-Lee/dateien/ygyy.html
Bibliography of primary and secondary sources in various languages.
http://homepage.ruhr-uni-bochum.de/Sven.K.Herbers-Lee/dateien/ygyy.html