@inproceedings{Pereira:2013OK,
  author = "Pereira, Dante",
  title = "{Nonlocal multiplicative anomaly in fermionic effective action}",
  doi = "10.22323/1.175.0023",
  booktitle = "Proceedings of 7th International Conference on Mathematical Methods in Physics {\textemdash} PoS(ICMP 2012)",
  year = 2013,
  volume = "175",
  pages = "023"
}