@book { title = {Magyar Tudomány 2019/4}, year = {2019}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud_po-heading-id_3mDt3HSCSUyhJ8Yvtg2Wag_p3#matud_po-heading-id_3mDt3HSCSUyhJ8Yvtg2Wag_p3} }