Grimme, J. MPI for Polymer Research, Max Planck Society;
Scherf, Ullrich MPI for Polymer Research, Max Planck Society;
Grimme, J., & Scherf, U. (1996). Planar para-phenylene oligomers. Macromolecular Chemistry and Physics, 197(7), 2297-2304. doi:10.1002/macp.1996.021970720.