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1by Sánchez, Pilar, González, Ángel F., Jereb, Patrizia, Laptikhovsky, V. V., Mangold, K. M., Nigmatullin, Ch. M., Ragonese, S.
Published 1998informe técnico bibliotecaICM ES -
2by Sweeney, M.J. (ed.), Smithsonian Institution, Washington, DC (USA) eng, Roper, C.F.E. (ed.), Mangold, K.M. (ed.), Clarke, M.R. (ed.), Boletzky, S.V. (ed.)
Published 1992Texto bibliotecaFAO IT