@misc{Urbanek_Grzegorz_Rudiments,
 author={Urbanek, Grzegorz},
 howpublished={online},
 publisher={Wydawnictwo UMCS},
 language={eng},
 type={artykuł},
 title={Rudiments of sustainable competitive advantage in the digital age},
 keywords={competitive advantage, digital economy, value creation, strategic analysis},
}