1. Human Gastric Function; an Experimental Study of Man and His Stomach;Wolf,1947
2. Headache and Other Head Pain;Wolff,1963
3. Nerves of the Blood Vessels, Heart, Meninges, Digestive Tract and Urinary Bladder;Stohr,1932
4. Observations on the Innervation of Intracranial Vessels;Huber;J. Comp. Neurol,1899
5. Visceral Receptors Concerned in Visceral Pain and the Pseudoaffective Response to Intra-Arterial Injection of Bradykinin and Other Algesic Agents;Braun;J. Comp. Anat,1963