@inproceedings{BUT22788,
  author="Zdeněk {Šmarda} and Vlasta {Krupková}",
  title="Modified variational principle for electromagnetics",
  booktitle="Proceedings of electronic version of reviewed contribution",
  year="2007",
  number="1",
  pages="5",
  publisher="University  of Defence",
  address="Brno",
  isbn="978-80-7231-228-3"
}