@misc{Wilczyńska_Krystyna_On_2001,
 author={Wilczyńska, Krystyna},
 volume={49},
 editor={Polska Akademia Nauk.},
 number={3},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 howpublished={online},
 year={2001},
 publisher={Państ. Wydaw. Nauk.},
 language={eng},
 type={Text},
 title={On arcs in quadruple systems},
}