array(3) {
  [0]=>
  int(3714)
  [1]=>
  string(182) "Abdel-Hamid O. et al. Convolutional neural networks for speech recognition // IEEE/ACM Transactions on audio, speech, and language processing. 2014. vol. 22. no. 10. pp. 1533–1545."
  [2]=>
  int(8)
}
<h1>DB Error 230: Duplicate entry '3714-8' for key 'citations.citations_submission_seq'</h1>