PT Journal AU Blum, C Stuerzl, N Hennrich, F Lebedkin, S Heeg, S Dumlich, H Reich, S Kappes, MM TI Selective Bundling of Zigzag Single-Walled Carbon Nanotubes SO ACS nano PY 2011 BP 2847 EP 2854 VL 5 IS 4 DI 10.1021/nn1033746 LA english ER