@misc{Aleksandrova_Olena_Competition_2018,
 author={Aleksandrova, Olena and Omelchenko, Yurii and Popovich, Olena},
 address={Olsztyn},
 howpublished={online},
 year={2018},
 publisher={Wydawnictwo Uniwersytetu Warmińsko-Mazurskiego},
 language={eng},
 type={artykuł},
 title={Competition as a factor of social development},
}