%0 Journal Article %T Simultaneous Effect of the Catalyst Precursor Concentration and the Longitudinal Position on the Growth Patterns of Multiwalled Carbon Nanotubes %A Maghrebi, Morteza %A Esfandiari, Kourosh %A Ali Sane %A Abbasali Khodadadi %A Yadollah Mortazavi %J Industrial and Engineering Chemistry Research %@ 0888-5885 %D 2014