@Article{48968,
journal="Klinika Oczna / Acta Ophthalmologica Polonica",
issn="0023-2157",
volume="106",
number="1",
year="2004",
title="Occurence of astigmatism among students 
ranging from 6 to 18 years of age",
author="pages="61--64",
url="https://www.termedia.pl/Occurence-of-astigmatism-among-students-r-nranging-from-6-to-18-years-of-age,124,48968,1,1.html"
}