Denkō-roku. A Japanese Sōtō zen historical work composed between 1299 and 1301 by the monk Keizan Jōkin (1268-1325). This work traces the lineage of masters and disciples of the Sōtō school from the Buddha through Dōgen, and is an invaluable source for Zen history. It is number 2585 in the Taishō collection.

A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)