@misc{Ryczkowski_Janusz_Spectroscopic,
 author={Ryczkowski, Janusz and Pasieczna-Patkowska, Sylwia},
 howpublished={online},
 publisher={UMCS},
 language={eng},
 type={artykuł},
 title={Spectroscopic studies of alumina supported nickel catalysts precursors : Part II - catalysts prepared from alkaline solutions},
 keywords={chemia},
}