《北史·列传·卷六十》
牛弘宽厚和气如此。有文集十二卷流行于世。李德林字公辅，博陵安平人。
李德林，字公辅，博陵安平人。
Niu Hong was so tolerant and friendly. His collected works in twelve volumes were popular in the world. Li Delin zi Gongfu, was from Anping in Boling.