Müllen, Klaus MPI for Polymer Research, Max Planck Society;
Yin, C. X., Tan, X. L., Müllen, K., Stryker, J. M., & Gray, M. R. (2008). Associative pi-pi interactions of condensed aromatic compounds with vanadyl or nickel porphyrin complexes are not observed in the organic phase. Energy & Fuels, 22(4), 2465-2469.