Stamper, Robert L. (2011). „A History of Intraocular Pressure and Its Measurement”. Optometry and Vision Science. 88 (1): E16—E28. PMID21150677. doi:10.1097/OPX.0b013e318205a4e7..
Stamper, Robert L. (2011). „A History of Intraocular Pressure and Its Measurement”. Optometry and Vision Science. 88 (1): E16—E28. PMID21150677. doi:10.1097/OPX.0b013e318205a4e7..