Kholopstvo i kholopy v Moskovskom gosudarstve XUII v. po arkhivnym dokumentam Kholopʹego i Posolʹskogo prikazov, Oruzheĭnoĭ palaty i razri︠a︡da.
I︠A︡kovlev, Alekseĭ Ivanovich.
The Hague :  Mouton, 
1970.
Reprint of the Moscow, 1943 edition.
Serfdom