@article{article794,
  title = {General principles of sol - gel},
  author = {TOYGUN, Å. and KÖNEÇOÄžLU, G. and KALPAKLI, Y.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2013},
  volume = {31},
  pages = {456-476},
  doi = {}
}