Joshi, R., Engstler, J., Houben, L., Bar Sadan, M., Weidenkaff, A., Mandaliev, P., … Schneider, J. J. (2010). Catalyst composition, morphology and reaction pathway in the growth of “super-long” carbon nanotubes. ChemCatChem, 2(9), 1069-1073. https://doi.org/10.1002/cctc.201000037