array(3) {
  [0]=>
  int(17421)
  [1]=>
  string(264) "Sahu, R., Gupta R.D. Snow cover area analysis and its relation with climate variability in Chandra basin, Western Himalaya, during 2001–2017 using MODIS and ERA5 data // Environmental Monitoring and Assessment. 2020. vol. 192(8). DOI: 10.1007/s10661-020-08442-8."
  [2]=>
  int(28)
}
<h1>DB Error 230: Duplicate entry '17421-28' for key 'citations.citations_submission_seq'</h1>