Electronic structure of tetraphenyldithiapyranylidene (DIPS ϕ4)N. El-Khatib, M. Maitrot, H. Chermette, L. Porte and H. StrzeleckaJ. Chim. Phys., 84 (1987) 839-842DOI: https://doi.org/10.1051/jcp/1987840839
