N. Hien, N. B. Ngan, N. D. Dat and L. van Meervelt, Structures of 2,5-diaryl- and 2,3,5,6-tetra[3,2-b]thiophene synthesized by the palladium-catalyzed Suzuki-Miyaura cross-coupling reaction, VJChem 54 (2016) 672. DOI: https://doi.org/10.15625/0866-7144.2016-00385.