@article { author = {Akhkan, Saeed}, title = {}, journal = {Rahyaft}, volume = {10}, number = {23}, pages = {-}, year = {2001}, publisher = {National Research Institute for Science Policy (NRISP)}, issn = {1027-2690}, eissn = {2783-4514}, doi = {}, abstract = {}, keywords = {}, title_fa = {انجمن های علمی ایران}, abstract_fa = {}, keywords_fa = {}, url = {https://rahyaft.nrisp.ac.ir/article_13280.html}, eprint = {https://rahyaft.nrisp.ac.ir/article_13280_98567deb893ef2d78f486d2b69e9deb6.pdf} }