@book { title = {Magyar Tudomány 2019/4}, year = {2019}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud_po-heading-id_8PlLfwJ1t0m9a88Te8CyQQ_p4#matud_po-heading-id_8PlLfwJ1t0m9a88Te8CyQQ_p4} }