@book { title = {Magyar Tudomány 2021/07}, year = {2021}, publisher = {Akadémiai Kiadó}, isbn = {}, doi = {}, URL = {https://mersz.hu/hivatkozas/matud202107_po-heading-id_PMK8aLMiRUSzuFMHMK8G5g_p25#matud202107_po-heading-id_PMK8aLMiRUSzuFMHMK8G5g_p25} }