@article{
  author = {Ebrahimipur, Ahmad, Hosseini, Malek},
  title = {Epistemological Nihilism: The Failure of Signs in Wittgenstein's Metaphysics and Epistemology},
  journal = {Epistemological researches},
  year = {2021},
  volume = {10},
  number = {21},
  pages = {187-210},
  doi = {}
}