“Construct the Character Table of D7h Point Group and Apply It for Classify the (3N-6) Modes of Vibration for the [7] Cyclacene (Linear) Monoring Molecule”. Iraqi Journal of Science, vol. 60, no. 10, Oct. 2019, pp. 2102-13, https://doi.org/10.24996/ijs.2019.60.10.1.