@misc{Hessling_Egon_Alt-Paris.,
 author={Hessling, Egon and Hessling, Waldemar},
 howpublished={online},
 publisher={Librairie E. Hessling},
 language={ger},
 type={book},
 title={Alt-Paris. Bd. 3, Baudenkmaler der Hoch- und Spat- Renaissance},
 keywords={architecture, art history, France, Paris},
}