@book { title = {Magyar Tudomány 2020/7}, year = {2020}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud202007_po-heading-id_IcseZxf_vUmAM3paupC8CQ_p9#matud202007_po-heading-id_IcseZxf_vUmAM3paupC8CQ_p9} }