@article{Chekelian:2007lw,
  author = "Chekelian, Vladimir",
  title = "{Measurements of charm and beauty proton structure functions $F_2^{c\bar{c }}$ and $F_2^{b\bar{b}}$ at HERA}",
  doi = "10.22323/1.021.0040",
  journal = "PoS",
  year = 2007,
  volume = "HEP2005",
  pages = "040"
}