array(4) { [0]=> string(14) "Jose Rodriguez" [1]=> string(98) " Patricio Cortes-Predictive Control of Power Converters and Electrical Drives-Wiley (2012) (1).pdf" [2]=> string(8) " 9843967" [3]=> string(21) " 2019-11-16 22:03:1 " }