array(8) { [0]=> string(59) "psoo\Volume issue 2011 [doi 10.1109%2FDRPT.2011.5994097] Li" [1]=> string(9) " Peng; Xi" [2]=> string(10) " Peng; Fei" [3]=> string(14) " Liqiang; Qian" [4]=> string(12) " Jiang; Chen" [5]=> string(115) " Jianjie -- [IEEE 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Powe.pdf" [6]=> string(7) " 714642" [7]=> string(21) " 2014-06-29 12:36:1 " }