12. Ruta Ustivanviciene, Vidtmantas Januskevicius, Association between occupational asthenopia and psycho-physilogical indicators of visual strain in workers using video display terminals, Med Sci Monit, 2006; 12(7): CR296-301.

12. Ruta Ustivanviciene, Vidtmantas Januskevicius, Association between occupational asthenopia and psycho-physilogical indicators of visual strain in workers using video display terminals, Med Sci Monit, 2006; 12(7): CR296-301.