array(3) {
  [0]=>
  int(3027)
  [1]=>
  string(189) "Korzun D., Galov I., Balandin S. Development of Smart Room Services on Top of Smart-M3 // Proceedings of the 14th Conf. of Open Innovations Association FRUCT. SPb.: SUAI. 2013. pp. 37–44."
  [2]=>
  int(20)
}
<h1>DB Error 230: Duplicate entry '3027-20' for key 'citations.citations_submission_seq'</h1>