The flattening of the absorption spectrum of suspensions, as compared to that of solutions.

@article{Duysens1956TheFO,
  title={The flattening of the absorption spectrum of suspensions, as compared to that of solutions.},
  author={L. N. M. Duysens},
  journal={Biochimica et biophysica acta},
  year={1956},
  volume={19 1},
  pages={1-12}
}