Arnold, L. MPI for Polymer Research, Max Planck Society;
Müllen, Klaus MPI for Polymer Research, Max Planck Society;
Arnold, L., & Müllen, K. (2011). Modifying the porphyrin core - a chemist's jigsaw. Journal of Porphyrins and Phthalocyanines, 15(9-10), 757-779.