@misc{Matthes_Max_Erich_Richard_(1865–1930)_Lehrbuch_1922,
 author={Matthes, Max Erich Richard (1865–1930)},
 copyright={Public Domain},
 address={Berlin},
 howpublished={online},
 year={1922},
 publisher={Verlag von Julius Springer},
 language={ger},
 title={Lehrbuch der differentialdiagnose innerer krankheiten},
 type={Text},
 URL={http://www.rcin.org.pl/Content/143083/PDF/WA488_178142_19857_Matthes-Lehrbuch.pdf},
 keywords={Internal diseases - diagnosis, Differential diagnosis - internal diseases - list of human diseases},
}