@misc{indiciae186b743a2fca,
  title = {Source identification by non-negative matrix factorization combined with semi-supervised clustering},
  author = {Alexandrov, Boian S. and Alexandrov, Ludmil B. and Iliev, Filip L. and Stanev, Valentin G. and Vesselinov, Velimir V.},
  year = {2020},
  url = {https://www.osti.gov/biblio/1735270},
  note = {Source identifier: 1735270}
}