@article { Madden2011a, title = {Torsional carbon nanotube artificial muscles}, journal = {Science}, volume = {334}, year = {2011}, month = {10/2011}, pages = {494-497}, author = {Javad Foroughi, Geoffrey M. Spinks and Gordon G. Wallace and Jiyoung Oh and Mikhail E. Kozlov and Shaoli Fang and Tissaphern Mirfakhrai and John D. W. Madden and Min Kyoon Shin and Seon Jeong Kim and Ray H. Baughman} }