@book {708,
	title = {PrimarWebQuest - Projektorientiertes Lernen mit dem Internet in der Primarstufe},
	year = {2012},
	publisher = {Schneider Verlag},
	organization = {Schneider Verlag},
	address = {Hohengehren},
	author = {Langenhan, Julia and Schreiber, Christof}
}
@inbook {727,
	title = {Die Z{\"a}hldarstellung fr{\"u}her Kulturen mit WebQuests erkunden},
	booktitle = {Grundschule Mathematik},
	volume = {20},
	year = {2009},
	pages = {36-39},
	author = {Langenhan, Julia and Regner, Corinna and Schreiber, Christof}
}
