?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.title=Az+elm%C3%BAlt+3+%C3%A9v+k%C3%B6zlem%C3%A9nyei&rft.date=2021&rft.isbn=978-963-306-824-3&rft.genre=proceeding