1. Berry, R. G., Chambers, R. A., Duckett, S.: Clinicopathological study of juvenile ALS. Neurology (Minneap.)19, 312 (1969)
2. Bogaert, L. van: La scl�rose lat�rale amyotrophique et la paralysie bulbaire progressive chez l'enfant. Rev. Neurol.1, 180?192 (1952)
3. Cognazzo, A., Martin, L.: A sporadic case of juvenile ALS. Semiquantitative and histoenzymatical study of the denervated muscles. Eur. Neurol.3, 211?230 (1970)
4. Hirano, A., Kurland, L. T., Sayre, G. P.: Familial ALS: a subgroup characterized by posterior and spinocerebellar tract involvement and hyaline inclusions in the anterior horn cells. Arch. Neurol.16, 232?243 (1967)
5. Kuroda, S., Hayahara, T., Tateishi, J.: An autopsy case of spastic tetraparesis, showing Alzheimer's neurofibrillary changes with peculiar localization. 17. Congress of Jap. Neuropathol. Society, Niigata 1976