http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Automatic water quality monitoring and warning system
Institute for Meteorology and Water Management. Department of Water Management
ed. by Marek Jerzy Gromiec and Jesper Duwe Nielsen ; DHI - Water nad Environment, Denmark, Institute for Meteorology and Water Management, Warsaw, Poland, Municipal Company for Water Supply and Sewerage of the City of Warsaw, Poland.
Biblioteka Ochrony Jakości Wód Polskiego Komitetu IWA vol. 22