The Lianghan biji 兩漢筆記 "Brush notes to the two Han dynasties" is a historical critique of the Former 前漢 (206 BCE-8 CE) and Later Han 後漢 (25-220 CE) periods written by the Song period 宋 (960-1279) scholar Qian Shi 錢時. He has also written the Sishu guanjian 四書管見 and Rongtang shujie 融堂書解. The first chapters of the 12 juan "scrolls" long Lianghan biji is a collection of thoughts on Han period history, while the largest part of the book is an analysis of historical events and political decisions. One of Qian Shi's main points is the semi-feudal system practiced under the Han, with princes and meritorious ministers being enfeoffed with tracts of land, was a wrong system and doomed to die.
The book is included in the imperial collectaneum Siku quanshu 四庫全書.
Source: Li Xueqin 李學勤, Lü Wenyu 呂文鬰 (1996). Siku da cidian 四庫大辭典, vol. 1, p. 1518. Changchun: Jilin daxue chubanshe.