Doklady.
Contributors: Gosudarstvennai͡a︡ firma "Informat͡s︡ionnye i kommunikat͡s︡ionnye sistemy" (Bulgaria)
Publisher: Gos. firma "Informat͡s︡ionnye i kommunikat͡s︡ionnye sistemy"
Published: 1989
Place of publication: Sofii͡a︡
Language: rus
Number of pages: 266
Subjects: Electronic data processing -- Bulgaria.; Telecommunication -- Bulgaria.