array(3) {
  [0]=>
  int(1709)
  [1]=>
  string(205) "<em>Baranov S., Kotlyarov V., Weigert T.</em> Varifiable Coverage Criteria For Automated Tesdting. SDL2011: Integrating System and Software Modeling. Lecture Notes in Computer Science. 2012. 7083. C. 79-89"
  [2]=>
  int(30)
}
<h1>DB Error 230: Duplicate entry '1709-30' for key 'citations.citations_submission_seq'</h1>