Child Development· Tập 73 Số 4 ·Trang 1119-1133·2002
Peter K. Smith, Helen Cowie, Ragnar Olafsson, Andy P.D. Liefooghe, Ana Almeida, Hozumi Araki, Cristina del Barrio, Angela Costabile, Bojan Dekleva, Anastasia Houndoumadi, Kenneth Kim, Rosario Ortega Ruiz, Jacques Pain, Lena Pateraki, Mechthild Schäfer, Monika Singer, Andrea Smorti, Yuichi Toda, Helgi Tomasson, Wenxin Zhang