1. Beiträge zur pathologie und therapie des Glaukoms;von Graefe;Arch. f. Ophth.,1869
2. An operative procedure for glaucoma of the shallow chamber type;Barkan;Arch. Ophth.,1939
3. Iridectomy in narrow-angle glaucoma;Barkan;Am. J. Ophth.,1954
4. Peripheral iridectomy: Technique, mechanism and cause of hemorrhage;Barkan;Am. J. Ophth.,1954
5. Narrow-angle glaucoma;Chandler;Arch. Ophth.,1952