@article{Wojciechowski:2015,
  author  = "M. Wojciechowski and B. Brzostowski and G. Kamieniarz",
  title   = "DFT estimation of exchange coupling constant of Cr8 molecular ring using the hybrid functional B3LYP",
  journal = "Acta Physica Polonica A",
  volume  = "Vol. 127",
  number  = "no. 2",
  pages   = "407--409",
  year    = "2015",
}