Array
(
    [0] => Array
        (
            [id] => 1302
            [topology] => sig
            [link_rcsr] => http://rcsr.net/nets/sig
            [in_col] => 17
            [transitivity] => [(17)(29)(20)5]
            [space_group] => P42/mnm
            [pearson] => tP172
            [cn] => 4
            [Year] => 1998
            [cn_sort] => 004-
            [topology_str] => sig
            [caid] => 342
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.077
            [e_gap] => 
            [energy] => 0.705
            [bulk_mod] => 366.0
            [shear_mod] => 417.9
            [vicker_hard] => 78.6
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1303
            [topology] => sig
            [link_rcsr] => http://rcsr.net/nets/sig
            [in_col] => 17
            [transitivity] => [(17)(29)(20)5]
            [space_group] => P42/mnm
            [pearson] => tP172
            [cn] => 4
            [Year] => 1998
            [cn_sort] => 004-
            [topology_str] => sig
            [caid] => 342
            [nn] => 1
            [name] => clathrates III
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/PhilMagLetts_78_21_28_1998
            [publ_year] => 
            [ref] => 
        )

    [2] => Array
        (
            [id] => 1304
            [topology] => sig
            [link_rcsr] => http://rcsr.net/nets/sig
            [in_col] => 17
            [transitivity] => [(17)(29)(20)5]
            [space_group] => P42/mnm
            [pearson] => tP172
            [cn] => 4
            [Year] => 1998
            [cn_sort] => 004-
            [topology_str] => sig
            [caid] => 342
            [nn] => 2
            [name] => clathrates III
            [pressure] => 
            [density] => 3.07
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 400
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2011_JPCC_finland
            [publ_year] => 2011
            [ref] => 
        )

    [3] => Array
        (
            [id] => 1305
            [topology] => sig
            [link_rcsr] => http://rcsr.net/nets/sig
            [in_col] => 17
            [transitivity] => [(17)(29)(20)5]
            [space_group] => P42/mnm
            [pearson] => tP172
            [cn] => 4
            [Year] => 1998
            [cn_sort] => 004-
            [topology_str] => sig
            [caid] => 342
            [nn] => 3
            [name] => clathrates III
            [pressure] => 
            [density] => 3.07
            [e_gap] => 6.1
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2011_InorgChem_50_1733_1742_1733
            [publ_year] => 2011
            [ref] => 
        )

)