Institut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR) & Vinogradov, V. A. (1990). Regionalʹnye avtomatizirovannye informa︠t︡sionnye sistemy po obshchestvennym naukam: Opyt proektirovani︠i︡a i ėkspluata︠t︡sii. "Nauka," Leningradskoe otd-nie.
Dyfyniad Arddull ChicagoInstitut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR) and Vladimir Alekseevich Vinogradov. Regionalʹnye Avtomatizirovannye Informa︠t︡sionnye Sistemy Po Obshchestvennym Naukam: Opyt Proektirovani︠i︡a I ėkspluata︠t︡sii. Leningrad: "Nauka," Leningradskoe otd-nie, 1990.
Dyfyniad MLAInstitut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR) and Vladimir Alekseevich Vinogradov. Regionalʹnye Avtomatizirovannye Informa︠t︡sionnye Sistemy Po Obshchestvennym Naukam: Opyt Proektirovani︠i︡a I ėkspluata︠t︡sii. "Nauka," Leningradskoe otd-nie, 1990.