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		Aspects and sucessions of some grassland vegetation in the Rukwa Valleji a Permanent Breeding... by Backlund,Helge G Series: Oikos, Acta Oecologica Scandinavica -Supplementum ; v.2 Edition: Material type: Text Language: Spanish Publication details: - Availability: No items available. Request article Add to cart (remove)
		Magmatic activity and Mountain folding in the Andes od South Mendoza by Backlund,Helge G Series: Geological Magazine ; v.63(747) Edition: Material type: Text Language: Spanish Publication details: London-ING 1926 Availability: No items available. Request article Add to cart (remove)
		Om Kemiscka Forandringar vid metamorfos by Backlund,Helge G Series: Geol. Foren Forhandl ; v.41(5) Edition: Material type: Text Language: Spanish Publication details: - 1919 Availability: No items available. Request article Add to cart (remove)
		On the Eastern Part of the Arctic Basalt Plateau by Backlund,Helge G Series: Acta Academiae Aboensis. Mathematica et Physica ; v.1 Edition: Material type: Text Language: Spanish Publication details: - 1920 Availability: No items available. Request article Add to cart (remove)

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