Müllen, Klaus Dept. Müllen: Synthetic Chemistry, MPI for Polymer Research, Max Planck Society;
El-Shishtawy, R. M., Elroby, S. A., Asiri, A. M., & Müllen, K. (2016). Optical Absorption Spectra and Electronic Properties of Symmetric and Asymmetric Squaraine Dyes for Use in DSSC Solar Cells: DFT and TD-DFT Studies. International Journal of Molecular Sciences, 17(4): 487. doi:10.3390/ijms17040487.