@book { title = {Magyar Tudomány 2020/6}, year = {2020}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud202006_po-heading-id_rG_ykOv-g0Or2c4JCdtz1g_p5#matud202006_po-heading-id_rG_ykOv-g0Or2c4JCdtz1g_p5} }