array(3) {
  [0]=>
  int(13381)
  [1]=>
  string(116) "Jajodia S. et al. Moving Target Defense: Creating Asymmetric Uncertainty for Cyber Threats // Springer. 2011. 184 p."
  [2]=>
  int(1)
}
<h1>DB Error 230: Duplicate entry '13381-1' for key 'citations.citations_submission_seq'</h1>