@book {9783593434490, 
	title = "Fokus!",
	author = "Scherer, Hermann",
	isbn = "9783593434490",
	year = "2016",
	edition = "1",
	keywords = "Glück, Selbsthilfe, Autonomy, Autonomie, Self help, Konzentration, Concentration, Happiness",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783593434490",
	url = "https://content-select.com/de/portal/media/view/57208817-b44c-4c02-95cb-5d03b0dd2d03",
	publisher = "Campus Frankfurt / New York",
	language = "ger",
}