1. The dynamics of articulated rigid bodies for the purposes of animation;Armstrong,1985
2. Animating human figures: Perspectives and directions;Badler,1986
3. Articulated figure positioning by multiple constraints;Badler;IEEE Comp. Graph. Appl.,1987
4. Making Them Move: Mechanics, Control and Animation of Articulated Figures,1990
5. Goal-directed, dynamic animation of human walking;Bruderlin,1989