1. Arnold, W. J.: Behavioral effects of cranial irradiation of rats. Resp. Nerv. Syst. Ionizing Radiat. Int. Symp. Chicago (USA) 1960. New York and London: Academic Press 1962, p. 669?682.
2. Ashhurst, D. E.: The cytology and histo-chemistry of the neurones of Periplaneta americana. J. micr. Sci. 102, 399?405 (1961a).
3. Bargmann, W., u. A. Knoop: Elektronenmikroskopische Beobachtungen an der Neurohypophyse. Z. Zellforsch. 46, 242?251 (1957).
4. Beams, H. W., and R. L. King: Cytoplasmatic structures in ganglion cells of certain Orthoptera, with special reference to the Golgi bodies, mitochondria, ?vacuome?, intracellular trabeculae (trophospongium) and neurofibrillae. J. Morph. 53, 59?89 (1932).
5. ?, A. W. Sedar, and T. G. Evans: Studies on the neurons of the grasshopper with special reference to the Golgi bodies, mitochondria and neurofibrillae. Cellule 55, 293?304 (1953).