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1Published 1975Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1975-1980.10 v. : ill. ; 24 cm.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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2Published 1975Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1975-1991.17 v. : ill. ; 24 cm.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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3Published 1987Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1987-v. ; 25 cm.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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4Published 1968Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1968-1971.v. : ill.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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5Published 1972Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1972-v. : ill.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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6Published 1975Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1975-v. : ill.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”