Zheng, W., Razal, J. M., Whitten, P. G., Ovalle-Robles, R., Wallace, G. G., Baughman, R. H. & Spinks, G. Maxwell. (2011). Artificial muscles based on polypyrrole/carbon nanotube laminates. Advanced Materials, 23 (26), 2966-2970.
Zheng, W., Razal, J. M., Whitten, P. G., Ovalle-Robles, R., Wallace, G. G., Baughman, R. H. & Spinks, G. Maxwell. (2011). Artificial muscles based on polypyrrole/carbon nanotube laminates. Advanced Materials, 23 (26), 2966-2970.