@misc{Szumski_Grzegorz_Parents’,
 author={Szumski, Grzegorz and Karwowski, Maciej},
 howpublished={online},
 publisher={Educational Research Institute},
 language={pol},
 type={article},
 title={Parents’ engagement into education of lower secondary school students with and without the special educational needs – which stategies bring expected results?},
 keywords={special educational needs, parental’ engagement, academic achievement, lower secondary school},
}