?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Dettre+J%C3%A1nos&rft.aulast=Dettre&rft.aufirst=J%C3%A1nos&rft.date=1928.+december+25.&rft.title=D%C3%A9lmagyarorsz%C3%A1g&rft.volume=4&rft.pages=5-6&rft.issue=291&rft.atitle=A+legnagyobb+probl%C3%A9ma&rft.genre=article