xxx
Array
(
    [0] => Array
        (
            [id] => 1314
            [topology] => 4<sup>20</sup>T2
            [link_rcsr] => 
            [in_col] => 20
            [transitivity] => [(20)(30)(28)(18)]
            [space_group] => Pm
            [pearson] => mP20
            [cn] => 4
            [Year] => 2013
            [cn_sort] => 004-
            [topology_str] => 4<sup>20</sup>T2
            [caid] => 347
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.476
            [e_gap] => 
            [energy] => 0.653
            [bulk_mod] => 416.5
            [shear_mod] => 484.5
            [vicker_hard] => 91.5
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1315
            [topology] => 4<sup>20</sup>T2
            [link_rcsr] => 
            [in_col] => 20
            [transitivity] => [(20)(30)(28)(18)]
            [space_group] => Pm
            [pearson] => mP20
            [cn] => 4
            [Year] => 2013
            [cn_sort] => 004-
            [topology_str] => 4<sup>20</sup>T2
            [caid] => 347
            [nn] => 1
            [name] => 20B
            [pressure] => 20
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2013_PhysRev_B_88_014102
            [publ_year] => 2013
            [ref] => 
        )

)
xxx