@article{840111, author = {James Albus and Roger Bostelman and Tommy Chang and Tsai Hong and William Shackleford and Michael Shneier}, title = {Learning in a Hierarchical Control System: 4D/RCS in the DARPA LAGR Program}, year = {2006}, month = {2006-12-29 00:12:00}, publisher = {Journal of Field Robotics}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=824552}, language = {en}, }