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[1] K.S.W. Sing, R.T. Williams, Part. Part. Syst. Charact. 2004,21 : 71
[2] S. Lowell, J. Shields, M.A. Thomas, M. Thommes, Characterization of Porous Solids and Powders: Surface Area, Pore Size and Density, Springer, The Netherlands, 2004.
[3] F. Rouquerol, J. Rouquerol, K. Sing, Adsorption by Powders and Porous Solids, Academic Press, London,1999.
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