@article{
  author = {Saadabadi, Ali Asghar, khayyatian, Mohammad Sadegh, محمدی اترگله, فاطمه },
  title = {analytical - rational  explanation (definition, concept, history, differentiation, similarity, propagation and expansion) of free innovation},
  journal = {Modiriat-e- farda},
  year = {2022},
  volume = {20},
  number = {67},
  pages = {109-124},
  doi = {}
}