Evolution of Anisotropy, FirstOrder Hyperpolarizability and Electronic Parameters in p-Alkyl-p’-CynobiphenylSeries of Liquid Crystals: Odd-Even Effect Revisited, Abhishek Kumar, Ambrish KumarSrivastava, Sugriva Nath Tiwari, Neeraj Misra, Dipendra Sharma, MolecularCrystals and Liquid Crystals 681 (1), (2019) 23-31