@misc{Diehl_Karl_[List,
 author={Diehl, Karl},
 address={Frelburg i.R.},
 howpublished={online},
 language={ger},
 type={text},
 title={[List do Siegfrieda Brie - Brie 45]},
 keywords={Enrich Europeana Plus, correspondence},
}