@inbook {960,
	title = {TellMEE - Telling Mathematics in Elementary Education},
	booktitle = {Early Mathematics Learning {\textendash} Selected Papers of the POEM Conference 2016},
	year = {2018},
	pages = {159-177},
	publisher = {Springer},
	organization = {Springer},
	address = {New York},
	author = {Klose, Rebecca and Schreiber, Christof},
	editor = {Benz, Christiane and Steinweg, Anna Susanne and Gasteiger, Hedwig and Vollmuth, Helene and Sch{\"o}ner, Priska and Z{\"o}llner, Johanna}
}
@book {758,
	title = {Early Mathematics Learning. Selected Papers of the POEM 2012 Conference.},
	year = {2013},
	publisher = {Springer},
	organization = {Springer},
	address = {New York},
	editor = {Kortenkamp, Ulrich and Brandt, Birgit and Benz, Christiane and Krummheuer, G{\"o}tz and Ladel, Silke and Vogel, Rose}
}
@inbook {760,
	title = {Number Concepts - Process of Internalization and Externalization by the Use of Multi-Touch Technology},
	booktitle = {Early Mathematics Learning. Selected Papers of the POEM 2012 Conference.},
	year = {2013},
	pages = {237-253},
	publisher = {Springer},
	organization = {Springer},
	address = {New York},
	author = {Ladel, Silke and Kortenkamp, Ulrich},
	editor = {Kortenkamp, Ulrich and Brandt, Birgit and Benz, Christiane and Krummheuer, G{\"o}tz and Ladel, Silke and Vogel, Rose}
}
