20. Hanne W., Brewit H., Augenklinik Recths DI., Munchen TU., Changes in visual function caused by work at data display terminal, Ophthalmologe. 1994:91-107-12.

20. Hanne W., Brewit H., Augenklinik Recths DI., Munchen TU., Changes in visual function caused by work at data display terminal, Ophthalmologe. 1994:91-107-12.