http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Orfograficheskiĭ slovar' russkogo i︠a︡zyka
Institut russkogo i︠a︡zyka (Akademii︠a︡ nauk SSSR)
Akademii︠a︡ nauk SSSR. Institut russkogo i︠a︡zyka. [Pod red. C. I. Ozhegova i A. B. Shapiro].
From the Estate of George and Mathilda Sabo by Dr. Joseph R. Corcoran & Irene Sabo Corcoran and Family. September 1998.