Платон Чумаченко

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 36 3-4 December 2007

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 35 1-2 June 2005

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 26 3 September 1996

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 24 6 December 1994

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 23 1 February 1993

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 22 6 December 1992

Геологический институт „Страшимир Димитров“, БАН, 1113 София
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Геологический институт „Страшимир Димитров“, БАН, 1113 София
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Геолого-разведочное предприятие „Плевен“, 5800, Плевен
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Геолого-разведочное предприятие „Плевен“, 5800, Плевен

Volume 21 5 October 1991

Геологический институт, Болгарской академий наук, 1113 София
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Геологический институт, Болгарской академий наук, 1113 София

Volume 19 4 August 1989

Геологический институт, БАН, 1113, София
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Геологический институт, БАН, 1113, София
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Геолого-разведочное предприятие „Михайловград”, 3400, Михайловград

Volume 19 3 June 1989

Геологический институт Болгарской акедемий наук, 1113 София
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Геологический институт Болгарской акедемий наук, 1113 София
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Геологический институт Болгарской акедемий наук, 1113 София

Volume 18 6 December 1988