Banks, David; Markland, Howard; Smith, Paul V.; Mendez, Carlos; Rodriguez, Javier; Huerta, Alonso; Sæther, Ola M. (June 2005). "The effect of filtration on analyses of surface water samples. A study from the Salars of Coipasa and Uyuni, Bolivian Altiplano". Journal of Geochemical Exploration. 86 (2): 107. Bibcode:2005JCExp..86..104B. doi:10.1016/j.gexplo.2005.04.003. ISSN0375-6742.
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Banks, David; Markland, Howard; Smith, Paul V.; Mendez, Carlos; Rodriguez, Javier; Huerta, Alonso; Sæther, Ola M. (June 2005). "The effect of filtration on analyses of surface water samples. A study from the Salars of Coipasa and Uyuni, Bolivian Altiplano". Journal of Geochemical Exploration. 86 (2): 107. Bibcode:2005JCExp..86..104B. doi:10.1016/j.gexplo.2005.04.003. ISSN0375-6742.
Banks, David; Markland, Howard; Smith, Paul V.; Mendez, Carlos; Rodriguez, Javier; Huerta, Alonso; Sæther, Ola M. (June 2005). "The effect of filtration on analyses of surface water samples. A study from the Salars of Coipasa and Uyuni, Bolivian Altiplano". Journal of Geochemical Exploration. 86 (2): 107. Bibcode:2005JCExp..86..104B. doi:10.1016/j.gexplo.2005.04.003. ISSN0375-6742.