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Darrah, Thomas; in sod. (15. februar 2013). »Gas chemistry of the Dallol region of the Danakil Depression in the Afar region of the northernmost East African Rift«. Chemical Geology (v angleščini). 339: 16–29. Bibcode:2013ChGeo.339...16D. doi:10.1016/j.chemgeo.2012.10.036. ISSN0009-2541.
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Darrah, Thomas; in sod. (15. februar 2013). »Gas chemistry of the Dallol region of the Danakil Depression in the Afar region of the northernmost East African Rift«. Chemical Geology (v angleščini). 339: 16–29. Bibcode:2013ChGeo.339...16D. doi:10.1016/j.chemgeo.2012.10.036. ISSN0009-2541.