Nikonorov, Valerii P. (2–5 September 1998). Cataphracti, Catafractarii and Clibanarii: Another Look at the old problem of their Identifications. Военная археология: оружие и военное дело в исторической и социальной перспективе. Материалы Международной конференции [Military Archeology: Weapons and Military Affairs from a Historical and Social Perspective. Proceedings of the International Conference]. St. Petersburg. pp. 131–138.
Classic of Poetry "Airs of Qin: Little War-Chariot" quote: "俴駟孔羣" translation: "The thinly-armoured horse-quartet are very harmonious".
Zhu XiCollected Commentaries on the Classic of Poetry, "volume 3" p. 68 of 163. quote: "俴駟,四馬皆以淺薄之金為甲。欲其輕而易於馬之旋習也。" translation: "thinly armoured horse-quartet: all four horses are armoured by thin metal plates. Horses need to be light as well as easily steered and trained."
Classic of Poetry "Airs of Zheng: Men of Qing" quote: "駟介旁旁... 駟介麃麃... 駟介陶陶..." translation: "The armoured horse-quartet strutted strong... The armoured horse-quartet pranced proud... The armoured horse-quartet jaunted with joy..."
Zhu XiCollected Commentaries on the Classic of Poetry, "volume 4" p. 8 of 163. quote: "駟介,四馬而被甲也。" translation: "armoured horse-quartet, four forses covered by armours."