International Journal of Behavioral Development (2014) - Comment
doi: 10.1177/0165025413513706  issn: 0165-0254  issn: 1464-0651 

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Johanna Teiser, Bettina Lamm, Mirjam Boning, Frauke Graf, Helene Gudi, Claudia Goertz, Ina Fassbender, Claudia Freitag, Sibylle Spangler, Manuel Teubert, Arnold Lohaus, Gudrun Schwarzer, Monika Knopf, Heidi Keller