@misc{Myszkowski_L._[Wacław_[ca,
 author={Myszkowski, L.},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 howpublished={online},
 year={[ca 1946-1969]},
 publisher={L. Myszkowski},
 title={[Wacław Sierpiński] [Dokument ikonograficzny]},
}