Rehab M. Kubba and Khalida A. Samawi (2021) “Geometry, and Normal Modes of Vibration (3N-6) for Di and Tetra- Rings Layer (6, 0) Linear (Zigzag) SWCNTs; A DFT Treatment”, Application of Quantum Mechanical Calculations and Symmetry in Chemistry; Vibration Frequencies, Corrosion Inhibition and Prodrugs, pp. 28–44. doi: 10.9734/bpi/mono/978-93-91882-61-7/CH3.