@Article{Nas2009,
author="Nas, B.",
title="Geostatistical approach to assessment of spatial distribution of groundwater quality",
journal="Polish J. of Environ. Stud.",
year="2009",
volume="18",
number="6",
pages="1073--1082",
optnote="exported from refbase (http://www.uhydro.de/refbase/show.php?record=109), last updated on Sat, 20 Jun 2020 21:26:17 +0200"
}