@article { author = {}, title = {اخبار و یادداشت‌ها}, journal = {خبرنامه انجمن ریاضی ایران}, volume = {43}, number = {2}, pages = {-}, year = {2022}, publisher = {انجمن ریاضی ایران}, issn = {۰۰۰۰-۰۰۰۰}, eissn = {}, doi = {}, abstract = {}, keywords = {}, url = {https://nims.ims.ir/article_162933.html}, eprint = {https://nims.ims.ir/article_162933_24e7836023779908a7763ee79def2eb3.pdf} }