@article{
  author = {Nourizadeh, Mahboubeh, Saheb, Tahereh, Sahraee, Shaghayegh, Maleki, Ali},
  title = {Investigating the structure and evolution of the innovation network of catching-up countries in the field of solar energy using patent citations analysis},
  journal = { Roshd -e- Fanavari},
  year = {2022},
  volume = {18},
  number = {72},
  pages = {52-61},
  doi = {10.52547/jstpi.24265.18.72.52}
}