Vessally, E. 2010. Molecular Structure Studies on Seven-Memebered Heterocyclic C6H6M (M = O, S, Se, Te, NH, PH, AsH, SbH, CH2, SiH2, GeH2, SnH2 and PbH2): DFT Calculations. Asian Journal of Chemistry. 20, 8 (Mar. 2010), 5967–5970.