@book { title = {Magyar Tudomány 2021/07}, year = {2021}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud202107_po-heading-id_F68n52m0vki71j60wFrZ6Q_p7#matud202107_po-heading-id_F68n52m0vki71j60wFrZ6Q_p7} }