@misc{Aberg_Nils_Ostpreussen,
 author={Aberg Nils},
 howpublished={online},
 publisher={A.B. Akademiska Bokhandeln},
 language={ger},
 title={Ostpreussen in der Völkerwanderungszeit},
 type={książka},
 keywords={Prusy Wschodnie - historia, archeologia, Aberg, Nils (1888-1957)},
}