J. W.  Yang, Esconjauregui, S., Xie, R., Sugime, H., Makaryan, T., D'Arsie, L., Arellano, D. L. G., Bhardwaj, S., Cepek, C., and Robertson, J., ?Effect of Oxygen Plasma Alumina Treatment on Growth of Carbon Nanotube Forests?, Journal of Physical Chemistry C, vol. 118, pp. 18683?18692, 2014.