@inproceedings{Watanabe:2013k+,
  author = "Watanabe, Norihisa",
  title = "{Mass effect on the photon structure functions}",
  doi = "10.22323/1.145.0004",
  booktitle = "Proceedings of 10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) {\textemdash} PoS(RADCOR2011)",
  year = 2013,
  volume = "145",
  pages = "004"
}