@inproceedings{simkovic2013forbidden,
  author = {{\v{S}}imkovic, F. and Dvornick{\'y}, R.},
  title = {Forbidden unique beta-decays and neutrino mass},
  booktitle = {AIP Conference Proceedings},
  publisher = {AIP Publishing LLC},
  pages = {36--39},
  year = {2013},
  doi = {10.1063/1.4856544},
  issn = {0094-243X},
  isbn = {978-0-7354-1200-2}
}