@inproceedings{BUT5682,
  author="Rudolf {Hela} and Zeng {Sanhai}",
  title="Application of activated Fly Ash in Mortar and Concrete",
  booktitle="Concrete Structures in the 21st Century. Vol 2.",
  year="2002",
  pages="2",
  publisher="Japan Concrete Institut",
  address="Osaka",
  isbn="00-000-0000-0"
}