@misc{indiciaede92992e6d0f,
  title = {Image fading--a problem for frogs?},
  author = {N Dieringer and W J Daunicht},
  year = {1986},
  doi = {10.1007/bf00451484},
  url = {https://pubmed.ncbi.nlm.nih.gov/3489191/},
  note = {Source identifier: 3489191}
}