@misc{Pfohl_Ferdinand_(1862-1949)_Beethoven,
 author={Pfohl, Ferdinand (1862-1949)},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 publisher={Velhagen & Klasing},
 language={ger},
 type={książka},
 title={Beethoven},
 keywords={Beethoven, Ludwig van (1770-1827)},
}