Quellen

https://www.google.com/imgres?imgurl=https%3A%2F%2Fwww.deutsche-startups.de%2Fapp%2Fuploads%2F2013%2F12%2Fideen.jpg&imgrefurl=https%3A%2F%2Fwww.deutsche-startups.de%2F2016%2F01%2F26%2Fkreativitaet-auf-ideen-kommen%2F&tbnid=aSrEE8tSJLhD0M&vet=12ahUKEwiP6ved4L76AhXQgM4BHWJeDh0QMygAegUIARDDAQ..i&docid=31S0o0HT7fnG3M&w=720&h=480&q=ideen&client=firefox-b-d&ved=2ahUKEwiP6ved4L76AhXQgM4BHWJeDh0QMygAegUIARDDAQ