@misc{Grajkowski_Wojciech_Integration,
 author={Grajkowski, Wojciech},
 howpublished={online},
 publisher={Educational Research Institute},
 language={pol},
 title={Integration of science subjects in lower secondary school in teachers’, heads’ of school and students’ opinions},
 type={article},
 keywords={national curriculum, science subjects, integrated teaching, focus group interview},
}