array(3) {
  [0]=>
  int(3925)
  [1]=>
  string(158) "Domingo-Ferrer J. A provably secure additive and multiplicative privacy homomorphism // International Conference on Information Security. 2002. pp. 471–483."
  [2]=>
  int(24)
}
<h1>DB Error 230: Duplicate entry '3925-24' for key 'citations.citations_submission_seq'</h1>