@article{BetkeLokstein2019,
  author    = {Alexander Betke and Heiko Lokstein},
  title     = {Two-photon excitation spectroscopy of photosynthetic light-harvesting complexes and pigments},
  journal   = {Faraday discussions},
  volume    = {216},
  pages     = {494 -- 506},
  doi       = {10.1039/c8fd00198g},
  year      = {2019},
}