@article{
  author = {Ghasemi, S., Fazaeli, R., Yousefi, M.},
  title = {Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity},
  journal = {Journal of Applied Chemical Research},
  year = {2012},
  volume = {6},
  number = {2},
  pages = {7-19},
  doi = {}
}