@book {PUBA248,
	title = {Visual Contribution to Word Prominence Detection in a Playful Interaction Setting},
	author = {Martin Ernst Heckmann},
	year = {2013},
	month = {April},
	publisher = {Springer},
	booktitle = {Natural Interaction with Robots, Knowbots and Smartphones - Putting Spoken Dialog Systems into Practice,},
	editor = {Joseph Mariani, Laurence Devillers, Martine Garnier-Rizet, Sophie Rosset},
	address = {Heidelberg}
}