@article{Vagstad_2000,
title={Nutrient losses from agricultural areas in the Gulf of Riga drainage basin},
volume={14},
ISSN={0925-8574},
url={http://dx.doi.org/10.1016/s0925-8574(99)00067-1},
DOI={10.1016/s0925-8574(99)00067-1},
number={4},
journal={Ecological Engineering},
publisher={Elsevier BV},
author={Vagstad,
N and Jansons,
V and Loigu,
E and Deelstra,
J},
year={2000},
month=apr,
pages={435–441} }