L. M. Sechu,
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T. Murre, Borsboom, P., Cornelisse, M., Rietveld, L., Roomer, R., van der Pal, H., e Beuken, R.,
«ISP Camoapa : informe principal». Delft University of Technology, Delft, The Netherlands, p 108 p.: fig., tab., 1986.
M. Gamrasni,
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N. M. Ram, Calabrese, E. J., e Christman, R. F.,
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