xxx
Array
(
    [0] => Array
        (
            [id] => 813
            [topology] => cas
            [link_rcsr] => http://rcsr.net/nets/cas
            [in_col] => 3
            [transitivity] => [3653]
            [space_group] => Cmcm
            [pearson] => oS24
            [cn] => 4
            [Year] => 2016
            [cn_sort] => 004-
            [topology_str] => cas
            [caid] => 181
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.270
            [e_gap] => 
            [energy] => 0.245
            [bulk_mod] => 392.5
            [shear_mod] => 408.0
            [vicker_hard] => 74.6
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 814
            [topology] => cas
            [link_rcsr] => http://rcsr.net/nets/cas
            [in_col] => 3
            [transitivity] => [3653]
            [space_group] => Cmcm
            [pearson] => oS24
            [cn] => 4
            [Year] => 2016
            [cn_sort] => 004-
            [topology_str] => cas
            [caid] => 181
            [nn] => 1
            [name] => C<sub>CAS</sub>
            [pressure] => 
            [density] => 3.27
            [e_gap] => 3.18
            [energy] => 
            [bulk_mod] => 407.0
            [shear_mod] => 
            [vicker_hard] => 89.2
            [ref_file] => /References/2016_JAppPhys_120_165101
            [publ_year] => 2016
            [ref] => 
        )

)
xxx