Steffen, H Former Department Structure and Function of Natural Nerve-Net , Max Planck Institute for Biological Cybernetics, Max Planck Society; Max Planck Institute for Biological Cybernetics, Max Planck Society;
https://www.sciencedirect.com/science/article/pii/030439407690046X (Verlagsversion)
Steffen, H. (1976). Golgi-stained barrel-neurons in the somatosensory region of the mouse cerebral cortex. Neuroscience Letters, 2(1), 57-59. doi:10.1016/0304-3940(76)90046-X.