Peichl, L. Comparative Anatomy of the Mammalian Retina Group, Max Planck Institute for Brain Research, Max Planck Society;
Hanke, F. D., Peichl, L., & Dehnhardt, G. (2009). Retinal ganglion cell topography in juvenile harbor seals (Phoca vitulina). Brain Behavior and Evolution, 74(2), 102-109.