@misc{_[Arend_1959,
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 journal={Międzynarodowe Sympozjum Metod Infinistycznych (1959 ; Warszawa).},
 howpublished={online},
 year={1959},
 title={[Arend Heyting] [Dokument ikonograficzny]},
}