@book{b553ca9462bf4bf8accc45f31854888c,
title = "Duurzame melkveehouderij en stikstofmanagement",
keywords = "dierlijke productie, duurzaamheid (sustainability), stikstofkringloop, kringlopen, verontreiniging, verontreinigingsbeheersing, milieueffect, grondwaterverontreiniging, animal production, sustainability, nitrogen cycle, cycling, pollution, pollution control, environmental impact, groundwater pollution",
author = "{van Keulen}, H.",
year = "2000",
language = "Nederlands",
series = "Rapport / De Marke",
publisher = "Plant Research International",
number = "21",
address = "Netherlands",
}