@misc{Boulliau_Ismaël_(1605-1694)_Berol.,
 author={Boulliau, Ismaël (1605-1694)},
 howpublished={online},
 title={Berol. Ms. Autographen Sammlung, Bullialdus},
 type={rękopis},
 keywords={Hevelius, J.},
}