Ozen, C., Yurtsever, M. & Ozturk, T. (2011) A theoretical approach to the formation mechanism of diphenyldithieno[3, 2-b:2 ',3 '-d]thiophene from 1,8-diketone, 4,5-bis(benzoylmethylthio)thiophene: a DFT study. TETRAHEDRON , 67(34), 6275-6280.