array(4) { [0]=> string(17) "O. C. Zienkiewicz" [1]=> string(131) " R. L. Taylor and David Fox (Auth.) - The Finite Element Method for Solid and Structural Mechanics-Butterworth-Heinemann (2014).pdf" [2]=> string(9) " 26099069" [3]=> string(21) " 2022-05-11 15:34:3 " }