Concerning factors of soil erosion, with special reference to tropical areas von Ploey, J. de

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The Colonia astrobleme, Brasil von RICCOMINI, C, TURCQ, B, MARTIN, L, MOREIRA, M.Z, LORSCHEITTER, M.L

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Sugestoes para o estudo de captaçao de agua subterranea von VIEIRA, P. C

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Contribuiçao a Geología dos arredores de Registro, S.P von PRESSINOTTI, P. C, PRESSINOTTI, M. M. N

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Neotectonic Activity from the Upper Reaches of the Arabian Gulf and Possibilities of New Oil Fields von Sissakian, V. K., Abdul Ahad, A. D., Al-Ansari, N., Knutsson, S.

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Statistical estimation and generalized additive modeling of rock glacier distribution in the San Juan Mountains, Colorado, United States von Brenning, A., Grasser, M., Friend, D. A.

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Three Late Quaternary pollen diagrams from Southern Patagonia and their palaeoecological implications von Heusser, C.J.

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