Authors: Zhou, Z Boehm, AE

Citation: Z. Zhou et Ae. Boehm, American and Chinese children's knowledge of basic relational concepts, SCH PSY INT, 22(1), 2001, pp. 5-21

Authors: Zheng, Z Peverly, ST Boehm, AE Lin, CD

Citation: Z. Zheng et al., American and Chinese children's understanding of distance, time, and speedinterrelations, COGN DEV, 15(2), 2000, pp. 215-240