1. Vorläufige Notiz über das Wesen des Glaucoma;Von Graefe;Arch, f. Ophth.,1854
2. Operazioni moderne del glaucoma;Pflüger;Arch. d' Ottal.,1893
3. Glaucoma: classification, causes, and surgical control: Results of microgonioscopic research;Barkan;Am. J. Ophth.,1938
4. Peripheral iridectomy in narrow-angle glaucoma;Haas;Tr. Am. Acad. Ophth. Otol.,1952
5. Iridectomy in narrow-angle glaucoma;Barkan;Am. J. Ophth.,1954