xxx
Array
(
    [0] => Array
        (
            [id] => 518
            [topology] => mog
            [link_rcsr] => http://rcsr.net/nets/mog
            [in_col] => 2
            [transitivity] => [2232]
            [space_group] => Cmmm
            [pearson] => oS6
            [cn] => 4
            [Year] => 2015
            [cn_sort] => 004-
            [topology_str] => mog
            [caid] => 96
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.282
            [e_gap] => 
            [energy] => 1.495
            [bulk_mod] => -
            [shear_mod] => -
            [vicker_hard] => -
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 519
            [topology] => mog
            [link_rcsr] => http://rcsr.net/nets/mog
            [in_col] => 2
            [transitivity] => [2232]
            [space_group] => Cmmm
            [pearson] => oS6
            [cn] => 4
            [Year] => 2015
            [cn_sort] => 004-
            [topology_str] => mog
            [caid] => 96
            [nn] => 1
            [name] => Ibam
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 372
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2015PhysRevB91_214104
            [publ_year] => 2015
            [ref] => 
        )

)
xxx