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2by Neuburg, H. A. C., Soberman, R. K., Swetnick, M. J., Korff, S. A.Get access
Published in Physical Review (1955)
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3by NEUBURG, H. A. C., THIEL, E., WALKER, P. T., BEHRENDT, J. C., AUGHENBAUGH, N. B.Get access
Published in Annals of the Association of American Geographers (1959)
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Article in Journal/Newspaper