@misc{Zajdel_Krzysztof_Citation,
 author={Zajdel, Krzysztof and Prokosz, Małgorzata},
 copyright={Copyright by Krzysztof Zajdel, Małgorzata Prokosz},
 address={Wrocław},
 howpublished={online},
 publisher={Wydawnictwo Apis},
 language={eng},
 title={Citation Index},
 keywords={Poland, Problems concerning contemporary families, family, social problems},
}