@incollection{Duncan.1977,
 author = {Duncan, Isadora},
 title = {Zur\"{u}ck zur Natur},
 publisher = {Henschelverlag},
 editor = {Wolgina, Lydia and Pietzsch, Ulrich},
 booktitle = {Die Welt des Tanzes in Selbstzeugnissen : 20. Jahrhundert},
 year = {1977},
 address = {Berlin}
}