deletions | additions       diff --git a/data discovery 3.md b/data discovery 3.md  index f0c114b..881d095 100644  --- a/data discovery 3.md  +++ b/data discovery 3.md 
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The Portal data results are linked with the LEPR (Library of Experimental Phase Relations) database \citep{Hirschmann_2008}, allowing a comparison of field and laboratory derived rocks with matching or similar compositions. The portal can easily display sample results as grouped by a publication DOI, as used in direct linking from Science Direct online articles ([Elsevier press release](http://www.elsevier.com/about/press-releases/science-and-technology/elsevier-and-earthchem-announce-linking-collaboration)). release](http://www.elsevier.com/about/press-releases/science-and-technology/elsevier-and-earthchem-announce-linking-collaboration), accessed 25 January 2014).