TY  - RPRT
TI  - Development of stepping patterns in human infants: a dynamical systems perspective.
AU  - B D Ulrich
PY  - 1989
DO  - 10.1080/00222895.1989.10735491
UR  - https://pubmed.ncbi.nlm.nih.gov/15136253/
ID  - 15136253
ER  -