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1 |
Material Type: Artigo
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Bulgarian agriculture facing of reformsDoncev, D. (Academie des Sciences, Sofia (Bulgarie). Institut de Geographie) ; Lenormand, PAgricultures (Montrouge), 1993-03, Vol.2 (2) [Periódico revisado por pares]Texto completo disponível |
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Material Type: Artigo
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Production of karst secondary forms. Cavitation effectMaglova, P. (Academie Bulgare des Sciences, Stara Zagora (Bulgaria). Inst. de Recherches Cosmiques) ; Stoev, ABulletin (Société géographique de Liège), 1993, Vol.29 [Periódico revisado por pares]Liege (Belgium): La Societe Geographique de LiegeTexto completo disponível |