@book { title = {Magyar Tudomány 2020/7}, year = {2020}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud202007_po-heading-id_GtrP8fnSpEGEiGjBPNk7wQ_p1#matud202007_po-heading-id_GtrP8fnSpEGEiGjBPNk7wQ_p1} }