xxx
Array
(
    [0] => Array
        (
            [id] => 587
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            [pearson] => tP8
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            [Year] => 2011
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            [topology_str] => mjb
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            [name] => 
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            [e_gap] => 
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            [shear_mod] => 127.2
            [vicker_hard] => 17.2
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
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            [Year] => 2011
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            [density] => 2.344
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            [shear_mod] => 140.4
            [vicker_hard] => 79.8
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            [ref] => 
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    [2] => Array
        (
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            [Year] => 2011
            [cn_sort] => 003-004-001-001-
            [topology_str] => mjb
            [caid] => 119
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            [name] => Squaroglitter
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            [shear_mod] => 
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            [ref_file] => /References/2013_JCTC_asap_Bucknum
            [publ_year] => 2013
            [ref] => 
        )

)
xxx