1. The syndrome produced by aneurysm at or near the junction of the internal carotid artery and the circle of Willis;Albright;Bulletin of the Johns Hopkins Hospital.,1929
2. A follow-up examination of 138 cases of Sub-arachnoidal haemorrhage;Ask-Upmark;Acta Medica Scandinavica,1950
3. Socalled spontaneous Subarachnoid haemorrhage;Ayer;The American Journal of Surgery,1934
4. Spontaneous cerebral Haemorrhage;Bagley;Archives of Neurology and Psychiatry,1932
5. Das Gefässsystem einer Acardiers (Unter-suchungen über den Einfluss des Blutstroms auf die Gefässentwicklung);Benninghoff;Morphologisches Jahrbuch,1929