@misc{Loos_Carl_Plan,
 author={Loos, Carl},
 address={Wien},
 howpublished={online},
 publisher={R. Lechner's k.u.k. Hof-u. Univ.-Buchhandlung (Wilh. Müller)},
 language={ger},
 title={Plan der k.k. Reichshaupt-und Residenzstadt Wien},
 keywords={19 w., plany miast, kartografia, Wiedeń (Austria)},
}