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1Publicado 1965### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1965.227 p. : ill. ; 24 cm.
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2Publicado 1976### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Institut, 1976-v. : ill. ; 24 cm.
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3Publicado 1994### CRL customization ### ?> ### Add publisher and desc details ### ?>S.-Peterburg : Izd-vo "Dmitriĭ Bulanin", 1994.59 p. ; 22 cm.
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4Publicado 1981### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Vissh minno-geolozhki in-t, 1981.4 v. : ill. ; 20 cm.
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5Publicado 1995### CRL customization ### ?> ### Add publisher and desc details ### ?>S.-Peterburg : "Dmitriĭ Bulanin", 1995.50 p. ; 22 cm.
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6Publicado 1970### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Dŭrzhavno izd-vo "Tekhnika", 1970-1989.20 v. : ill. ; 22 cm.
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7Publicado 1978### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Bŭlgarska akademi︠i︡a na naukite, ︠T︡Sentralna biblioteka, 1978.167 p. ; 21 cm.
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8Publicado 1978### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Vissh minno-geolozhki in-t--Sofi︠i︡a, 1978.4 v. : ill. ; 22 cm.
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9Publicado 1977### CRL customization ### ?> ### Add publisher and desc details ### ?>Plovdiv : Plovdivski universitet "Paisiĭ Khilendarski", 1977.336 p. : ill. ; 22 cm.
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10Publicado 1965### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1965.167 p. illus. 20 cm.
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11Publicado 1997### CRL customization ### ?> ### Add publisher and desc details ### ?>Plovdiv : Plovdivsko universitetsko izdatelstvo "Paisiĭ Khilendarski", 1997.150 p. ; 22 cm.
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12Publicado 1978### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Bŭlgarska akademi︠i︡a na naukite, ︠T︡Sentr. biblioteka, 1978.92 p. ; 20 cm.
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13Publicado 1974### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Vissh mashinno-elektrotekhnicheski institut "V.I. Lenin," 1974.96 p. : ill. ; 24 cm.
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14Publicado 1987### CRL customization ### ?> ### Add publisher and desc details ### ?>Plovdiv : [s.n.], 1987.166 p. ; 22 cm.
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15Publicado 1984### CRL customization ### ?> ### Add publisher and desc details ### ?>Plovdiv : Plovdivski universitet "Paisiĭ Khilendarski", 1984.282 p. ; 21 cm.