1. Surgical Treatment of Open Angle Glaucoma. Symposium on Glaucoma;Haas,1967
2. Sclerotomy with cautery;Nadel;Am. J. Ophthalmol,1966
3. On the results of different glaucoma operations;Louhela;Acta Ophthalmol,1946
4. Twenty-four hourly variations of aqueous flow. Examinations with perilimbal suction cup;Ericson;Acta Ophthalmol,1958
5. Reaktivierung von Filterkissen nach Glaukoma Operationen;Mittl;Klin. Monatsb. Augenheilkd.,1967