Authors: Leavens, DA Aureli, F Hopkins, WD Hyatt, CW

Citation: Da. Leavens et al., Effects of cognitive challenge on self-directed behaviors by chimpanzees (Pan troglodytes), AM J PRIMAT, 55(1), 2001, pp. 1-14

Authors: Leavens, DA Hopkins, WD

Citation: Da. Leavens et Wd. Hopkins, The whole-hand point: The structure and function of pointing from a comparative perspective, J COM PSYCH, 113(4), 1999, pp. 417-425