@book { title = {Magyar Tudomány 2019/4}, year = {2019}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud_po-heading-id_C6q6qO9tfkerzhXQcB3FdQ_p5#matud_po-heading-id_C6q6qO9tfkerzhXQcB3FdQ_p5} }