@article{
  author = {D. Gaikwad, Digambar, P. Pawar, Rajendra},
  title = {Silica sulfuric acid: an efficient catalyst for the synthesis of substituted indazoles},
  journal = {Journal of the Iranian Chemical Research},
  year = {2010},
  volume = {3},
  number = {3},
  pages = {191-194},
  doi = {}
}